2026 European heatwaves
This article documents a current event and may change rapidly. (June 2026) |
Thematic radiometer imagery of surface temperature captured by Copernicus Sentinel-3 on Tuesday 26 May | |
| Type | Heatwave |
|---|---|
| Areas | |
| Start date | 22 May 2026 |
| Peak temp. | 45.1 °C (113.2 °F), recorded at Andújar, Spain on Monday, 22 June 2026 |
| Losses | |
| Deaths | 1,352+
|

From late May 2026 onwards Europe was struck by severe heatwaves, with temperature records being broken in Belgium, France, Germany, Romania, Ireland, Italy, the Netherlands, Poland, the Czech Republic, Denmark, Spain, and the United Kingdom.[2] The first started on 24 May, with temperatures 10–15 °C (18–27 °F) higher than normal, causing several deaths. Temperatures were the highest ever recorded for May and spring,[3][4] with climate change causing the earlier onset of Central European summer.[5] Western Europe was the most affected area, with reports of record-breaking temperatures in France,[6][7] the United Kingdom, and Ireland. Other countries dealing with irregularly high temperatures were Portugal at 40 °C (104 °F), and Spain, which was forecast to reach 38 °C (100 °F).[8]
A second, more severe heatwave began on 17 June, just days before the summer solstice.[a][9] In France, Météo-France said 23 June was the country's hottest day since measurements began in 1947, with temperatures reaching 44.3 °C (111.7 °F) in Pissos, 42.1 °C (107.8 °F) in Bordeaux, and a June record of 40.9 °C (105.6 °F) in Paris.[10][11] On 26 June, the World Meteorological Organization (WMO) said the heatwave was expected to affect much of Western, Central, and Southern Europe over the following two weeks, with the focus of the heat likely to shift towards the Balkans.[12] By 28 June, the World Health Organization said that more than 1,300 excess deaths linked to high temperatures had been recorded across Europe since 21 June.[13] A rapid attribution analysis by World Weather Attribution described the event as the most severe heatwave recorded over the region studied, and concluded that comparable June heat would have been "virtually impossible" in 1976 without human-caused climate change.[14]
By country
[edit]Austria
[edit]In May, new temperature records were set at a total of 46 GeoSphere Austria stations. Of those, Lienz had the highest temperature, recording 33.3 °C (91.9 °F) on 26 May. The city also had a record eight hot days in May, which are days with a temperature of at least 30 °C (86 °F), beating the record of three set in 2001. Bregenz and Eisenstadt had set the new record for the highest number of hot days in May as well. Additionally, May had significantly below-average rainfall, with some regions being between half to two-thirds below the 1991–2020 average. May was also the fifth sunniest on record.[15]
On 18 June, GeoSphere Austria announced that a heatwave was about to affect the country, with highs between 30 and 36 °C (86 and 97 °F) expected to continue until the end of the month.[16] On 20 June, temperatures reached 35 °C (95 °F) at five GeoSphere Austria stations and a temperature of 36.0 °C (96.8 °F) was recorded in Bad Deutsch-Altenburg, marking the first time the value had been reached in Austria in 2026.[17] On 21 June, GeoSphere Austria recorded a temperature of at least 35.0 °C (95.0 °F) at a total of 18 stations in its network, which included a temperature of 36.6 °C (97.9 °F) in Bad Deutsch-Altenburg and a temperature of 36.1 °C (97.0 °F) at a further two stations.[18]
On 24 June, GeoSphere Austria announced that temperatures were expected to exceed 35 °C (95 °F) in all state capitals and reach 39 °C (102 °F) in Vienna on both 27 and 28 June. As a result, the highest heat warning would be in effect for much of northeastern Austria, including Vienna, as well as for the southern cities of Graz, Klagenfurt and Villach, whilst the second-highest heat warning would be in effect for other parts of the country.[19] The Austrian Grand Prix, a Formula One race taking place at the Red Bull Ring on 28 June, was declared a heat hazard by the FIA as temperatures at the circuit were expected to reach 36 °C (97 °F) during the race.[20][21]
On 27 June, a temperature of 39.3 °C (102.7 °F) was measured in Bad Deutsch-Altenburg, breaking a previous national June temperature record that was set in 2013, when a temperature of 38.6 °C (101.5 °F) was measured in Waidhofen an der Ybbs.[22] The same day, new June temperature records were set in six out of nine states of Austria, with the previous national June temperature record also surpassed in Vienna and Innsbruck, where temperatures reached 38.8 °C (101.8 °F) and 38.7 °C (101.7 °F), respectively. A temperature of 38.2 °C (100.8 °F) was measured in Bad Goisern, whilst Eisenstadt reached 37.9 °C (100.2 °F).[23]
On 28 June, temperatures exceeded 39 °C (102 °F) at several stations in Lower Austria and Vienna, as June temperature records were broken countrywide at 102 out of 251 stations that have been active for more than fifteen years.[24] That day, a temperature of 40.0 °C (104.0 °F) was measured in the Innere Stadt district of Vienna, which set a new all-time June temperature record for Austria and marked the first time the value had been reached in the capital since records began.[24][25] Outside of Vienna, a temperature of 39.9 °C (103.8 °F) was measured in the Langenlebarn area of Tulln, Innsbruck reached 38.7 °C (101.7 °F) on a second consecutive day, Linz was one of three places in Upper Austria where a temperature of 38.2 °C (100.8 °F) was measured, alongside Enns and Wels, and the same temperature was recorded in Eisenstadt, the state capital of Burgenland.[24][25]
On 29 June, it was reported that night-time temperatures did not drop below 20 °C (68 °F) at 90 out of 280 stations countrywide and a station in the Ottakring district of Vienna did not register temperatures below 27.3 °C (81.1 °F), which set a new all-time June record for the highest night-time temperature since the beginning of record-keeping in Austria.[26] The same day, highs in excess of 38 °C (100 °F) were recorded at several stations, with a temperature of 40.1 °C (104.2 °F) measured in Bad Deutsch-Altenburg and surpassing the all-time national June temperature record set in Vienna the day before.[27]
Belgium
[edit]Between 23 and 25 May, Uccle recorded temperatures of over 28 °C (82 °F). Locally in Brussels, temperatures peaked 31 °C (88 °F) on 25 May.[28] On 26 May, Uccle broke the daily temperature record set in 1985 and peaked at 30.3 °C (86.5 °F).[29]
Belgium experienced a heatwave in the second half of June. Between 20 and 25 June, it was reported that temperatures were expected to reach between 32 and 39 °C (90 and 102 °F) in Belgium.[30] On 24 June, Belgium set a price record of over 1 € per kWh electricity at sunset, as traditional power stations were maxed out to cope with increased air conditioning.[31]
On 26 June, the annual Battle of Waterloo re-enactment was cancelled.[32][33] On 27 June, Katy Perry's performance at Werchter Boutique festival was cancelled due to severe thunderstorms in the Benelux area.[34]
Bulgaria
[edit]It was reported that the Danubian Plain was edging towards 38 °C (100 °F) during late June 2026.[35]
Croatia
[edit]Croatia experienced a heatwave in the second half of June. In its weather forecast for 19 June, the Croatian Meteorological and Hydrological Service (DHMZ) reported that temperatures were expected to reach 32 °C (90 °F) in central Croatia and up to 34 °C (93 °F) in some areas along the coast, with sunny and hot weather expected to continue for several days. In coastal areas, temperatures were expected to remain between 21 and 24 °C (70 and 75 °F) during the night as well.[36]
On 26 June, DHMZ issued a red alert for much of Croatia's coast as it expected temperatures to reach 34 °C (93 °F) in most of the country and up to 36 °C (97 °F) in its southern parts. The ongoing heatwave in Croatia was expected to reach its peak by 28 June, when highs of 39 °C (102 °F) were predicted to occur in the country's interior. In coastal areas, temperatures were expected to remain above 25 °C (77 °F) during the night as well.[37] In the end, DHMZ recorded highs in excess of 36 °C (97 °F) in many parts of the country that day, both along the coast and in the interior, with a temperature of 37.5 °C (99.5 °F) measured in Imotski, followed by 37.0 °C (98.6 °F) in Senj.[38]
Czech Republic
[edit]On 27 June, the Czech Republic recorded its hottest day on record, with 40.6°C (105 F) recorded in the town of Doksany.[39] The record held only for one day as the following day, 28 June, 41.1 °C (106.0 °F) was measured at Doksany the first reading of 41 °C in the official Czech station network.[40]
Denmark
[edit]On 27 June Denmark's all-time temperature record was initially broken with 36.6 °C (97.9 °F) north of Odense. Record-keeping had begun in 1874.[41]
Estonia
[edit]On 28 June the Estonian Weather Service issued a Level 1 (Yellow) alert for the entire country in anticipation of thunderstorms and "scattered severe weather",[42] and advised caution during outdoor activities, given a forecast high of 30 °C (86 °F) by the end of the weekend. [43]
Finland
[edit]It is anticipated that southern Finland will experience the heatwave—by that nation's Nordic standards—the weekend of 27–28 June, with considerable volatility the week following, 30 °C (86 °F) or so being a distinct possibility.[44]
France
[edit]
In May, there were reports of record-breaking temperatures.[45] The national average was 24.9 °C (76.8 °F) on 26 May, the hottest May on record. The heat dome continued to bring hot temperatures with Angoulême-La Couronne recording a temperature of 37.8 °C (100.0 °F) on 28 May.[46] Seven heat-related deaths occurred in May.[47][46]
Beginning on 22 June, overnight temperatures were the hottest since records began in 1947, and Météo-France issued a heatwave red alert for 54 departments. The nation-wide heat index, an average of the measurements from 30 weather stations of the day and night-time highs, provisionally reached 29.8 °C (85.6 °F). The single highest temperature was 44.3 °C (111.7 °F) in Pissos, with parts of Western France above 40 °C (104 °F). Bordeaux reached 41.1 °C (106.0 °F). Nearly half of metropolitan France was affected.[48]
Drowning deaths in France have markedly increased;[49][50] on 26 June, Sports Minister Marina Ferrari stated in an interview with Le Figaro that two-thirds of the 55 people that had drowned were swimming in unsupervised or unauthorized areas,[51][33][50] and emergency services reported 61% more calls than the previous week, and 75% than the same time last year.[52] The deaths included En Avant Guingamp footballer Kenzo Kies.[53] At least 18 people died from related causes, including two children left in a hot car.[54] The heat forced 845 junior and middle schools to close, and a further 1,800 to adjust their teaching schedules.[55] Around 68,000 households in France experienced power outages.[56]
By 24 June, two-thirds of France was under a red alert.[57][58] On 25 June, 72 of the 96 Metropolitan France departments—75%—were under red alert.[59] Paris mayor Emmanuel Grégoire announced (without giving specific figures) that nearly all of the "critical indicators" were up: calls to emergency medical services and fire brigades, ER admissions, and deaths.[59] Two nuclear power plants were shut down,[60] and later a third. On 25 June, the French Ministry of Health announced that 44 cardiac arrests had occurred in Paris on 24 June, and that there had been a four-fold increase in ER visits for heat-related reasons nationwide.[61][62]
On 26 June, Enedis stated that 50,000 of its clients were without power.[52] In Paris, police chief Patrice Faure stated that emergency services were being overwhelmed by heat-related illnesses, with the head of the Association of French Emergency Doctors specifying that 55 people had died under emergency care in 24 hours, the normal number being three or five.[63] SAMU announced that 109 people have died in Paris in 24 hours, against 7 normally at this time of the year.[64]
The city announced restrictions on alcohol from 26–28 June, with public consumption of alcohol (excluding outdoor seating areas at licensed establishments) prohibited from 12:00 to 07:00, and sales of takeaway alcohol prohibited from 18:00 through the following morning from Friday through Sunday.[65][66] Paris Pride (which was postponed to September) and the Solidays music festival were cancelled following requests by Paris Police Prefecture,[67] along with Ironman Nice.[68] World Athletics stated that the Diamond League Meeting de Paris would still go on, but with non-professional events cancelled, and adjusted start times among other measures agreed upon by the prefecture. The Top 14 rugby union final was also expected to go on, but with alcohol sales prohibited at Stade de France.[69]
On 28 June the French national health authority (Haute Autorité de santé) announced that 1,000 additional deaths were recorded compared to the totals for previous months, a figure expected to rise, and the interior minister, Laurent Nuñez, noted that the ambulance services had responded to more than 122,000 calls during the height of the heatwave. Those 65 and older and/or shut-ins had the highest rise in death rates. Finally, severe lightning storms hit much of northern France in the immediate aftermath of the heatwave.[70][71]
Germany
[edit]May
[edit]Temperatures rose above 30 °C (86 °F) for the first time in 2026 on 23 May.[72] Increased cooling demands from the heatwave combined with the usage of more expensive power sources due to lower wind power generation caused day-ahead power prices to jump by 29% on 27 May.[73]
Many weather stations recorded new records for the number of days ≥30 °C (86 °F), especially in the southern half of the country. In the Upper Rhine region, 6 to 7 hot days were recorded locally. Wutöschingen-Ofteringen, Baden-Württemberg recorded 9 hot days this May, more than double the previous record of four set in May 2005.[74] The highest temperature recorded in Germany in May 2026 was 34 °C (93 °F) recorded in Regensburg, Bavaria on 26 May.[75]
June
[edit]Germany experienced another heatwave in the second half of June. Starting in the southwest, on 17 June temperatures already exceeded 30 °C (86 °F) at 25 weather stations, with a maximum of 32.7 °C (90.9 °F) at Müllheim, while two days later the heat was spreading over 441 stations (out of 505) with a maximum of 38.5 °C (101.3 °F) in Kitzingen.[76] On 20 and 21 June, it was reported that temperatures were expected to reach between 32 and 39 °C (90 and 102 °F) in central and southern Germany.[77][78] According to a weather forecast published on 23 June, the ongoing heatwave was likely to continue for at least one week as temperatures were expected to reach above 35 °C (95 °F) in most of the country by 26 June, with highs around 40 °C (104 °F) expected in the southwest.[79] On 25 June, the national railway network Deutsche Bahn offered its clientele free cancellation of reservations made before 23 June,[60][80] and later advised against travel in general due to the high risk, specifically from wildfires, heavy summer rain, and thunderstorms.[61]
One day later, 26 June, a new all-time national record high of 41.3 °C (106.3 °F) was measured in Saarbrücken[81] and already 23 weather stations were hitting the old record for June, which was measured on 30 June 2019 in Bernburg with 39.6 °C (103.3 °F).[82] This all-time record was broken again on 27 June in Drewitz, part of Möckern, in the northern part of Saxony-Anhalt reaching 41.5 °C (106.7 °F).[83]
By 27 June, 13 of the 16 German states had broken their all-time temperature records.[84] National Express suspended its regional railway service in North Rhine-Westphalia state for six hours, and more generally only essential travel was advised. Furthermore, the concrete in several areas of Germany's autobahn system expanded and burst open, leading to road closures for repair[41] and also the tram network in Leipzig had to suspend their services because of melting asphalt.[85] Near Hamburg the main traffic lane of the Bundesautobahn 7 (A7) was closed because the asphalt had split.[86] About 160 people had to be evacuated from a nursing home in Dormagen the night to Saturday, 26 June, after temperatures reached 35°C in the building. Two people died, and the incident is under investigation.[87]
On 28 June the all-time high was broken for the third consecutive day: 41.7 °C (107.1 °F) in Coschen, close to the Polish border.[70] And in Gohrischheide, in eastern Germany near Sachsen,[88] a wildfire broke out in in a forested nature reserve[89] contaminated with munitions from WWII.[70][90] Police in Berlin used water cannon shot in the air to cool people off.[70]
Hungary
[edit]Hungary experienced a heatwave in the second half of June. On 20 June, a temperature of 37.1 °C (98.8 °F) was measured in Aszód.[91] Between 22 and 25 June, temperatures were expected to reach between 30 and 36 °C (86 and 97 °F), whilst the peak of the heatwave was expected to occur between 26 and 28 June, with highs between 32 and 38 °C (90 and 100 °F).[91] On 27 June, a temperature of 40.0 °C (104.0 °F) was recorded in Budakalász, which marked the first time the value had been reached in Hungary in June, and a temperature of 40.7 °C (105.3 °F) was measured at the same station the following day.[92] Also on 27 June, a temperature of 39.8 °C (103.6 °F) was recorded in the Újpest district of Budapest, which by far surpassed a 1935 record for the highest temperature measured in the capital on that date.[92]
Ireland
[edit]Ireland saw its highest May temperature on record, with both Clonmel and Killarney recording 28.8 °C (83.8 °F), beating the previous May record of 28.4 °C (83.1 °F) in Kerry in 1997, with even higher temperatures expected.[93] On 26 May, Shannon Airport in County Clare recorded a temperature of 30.6 °C (87.1 °F).[94] Met Éireann reported that the temperature in south Ireland was five standard deviations over the May average.[95]
Italy
[edit]Red alert warnings were issued for Rome, Florence, Bologna, Brescia, and Turin on 28 May. Temperatures reached 38 °C (100 °F) in various cities. The thermal stress to the cables in the local grid led to repeated blackouts in Turin.[96]
On 24 June, red alerts were issued for sixteen cities, including Rome, Milan, Florence, and Turin.[58]
On 25 June, courts in Palermo suspended all non-exigent proceedings due to malfunctioning air conditioning, and the newspaper Corriere della Sera reported five deaths.[61]
On 26 June, the ANSA news agency reported that Genoa was the 18th city to be placed under red alert, and Uffizi Gallery extended a suspension of ticket sales and limited visiting hours.[97] Clam fishers on the Po River estuary reported macro algae growth, which they had to clean off their nets, a blue crab infestation, and a massive die-off of clams of in the 21 °C (70 °F) waters. Sea water entered 20 kilometres (12.4 mi) upstream, and the flow of the Po River at large had collapsed from its June average of 1,500 m3/sec. to 300. The environmental group Legambiente calculated less than three weeks of water reserve.[98]
Latvia
[edit]The Latvian Environment, Geology and Meteorology Centre (LVĢMC) forecast tropical nights for the weekend of 27–28 June and the following Monday, with the highest minimum not dropping below 30 °C (86 °F).[99] Thunderstorms are expected to form on Monday.[100]
Lithuania
[edit]The Lithuanian Hydrometeorological Service anticipated highs of 37 °C (99 °F) for the weekend of 26–27 June[101] and thunderstorms shortly thereafter. A maximum of 30 °C (86 °F) for one or two days is the criteria is a notable meteorological event with public health implications; such temperatures for three or more consecutive days is a "kaitra", an extreme heat event.[102]
Luxembourg
[edit]May records were met at several stations run by the Rural Economy and Agriculture Authority on 26 May, though none beat the national May record.[103]
On 26 June, 38.6 °C (101.5 °F) was recorded at Findel Airport, setting a new maximum temperature record for June.[104]
Netherlands
[edit]In the Netherlands a heatwave is defined as at five consecutive summer days — 25 °C (77 °F) or more — with temperatures reaching tropical-level heat — 30 °C (86 °F) or more — on at least three of those days.[105] During such occasions, the National Heatwave Plan is activated by Dutch public health institute RIVM,[106] ProRail and the NS runs fewer trains as a precautionary measure.[107] The heat also necessitated water spraying to keep the drawbridges across the canals functioning.[108][109][110]
First wave — May
[edit]On 26 May, the temperature in Ell reached 30.7 °C (87.3 °F), marking the beginning of the first Dutch heatwave of 2026.[111]
Second wave — June
[edit]The second heatwave began on 18 June, when the temperature in De Bilt reached 29.6 °C (85.3 °F). A day later, the temperature in De Bilt rose to 33.4 °C (92.1 °F), marking the first tropical day. After several summer days, the second tropical day followed on 24 June with 34 °C (93 °F). As of 26 June, data suggest this will become the longest-ever-recorded consecutive heatwave, lasting 11 days.[112]
Record-breaking statistics
[edit]| Date | New record | Previous record year | Old record |
|---|---|---|---|
| 26 May | 30.4 °C (86.7 °F) | 2005 | 29.1 °C (84.4 °F) |
| 24 June[114] | 33.7 °C (92.7 °F) | 2005 | 32.6 °C (90.7 °F) |
| 25 June[115] | 33.1 °C (91.6 °F) | 1976 | 32.9 °C (91.2 °F) |
| 26 June[116] | 36.8 °C (98.2 °F) | 1976 | 32.9 °C (91.2 °F) |
| New record | Date | Location | Previous record | Location | Old record |
|---|---|---|---|---|---|
| 21.3 °C (70.3 °F) | 25 June, 2026 | De Bilt[117] | 25 June, 2019 | De Bilt | 19.5 °C (67.1 °F) |
| All-time hottest record of De Bilt | 27 July, 2018 | De Bilt | 22.4 °C (72.3 °F) | ||
| Hottest record outside of De Bilt | 27 July, 2018 | Deelen | 24.4 °C (75.9 °F) | ||
24 June is the sixth ever recorded day when it is tropical conditions (above 30 °C (86 °F)) throughout the country, as well as the first-ever one for June.[114] The night of 24 June was the hottest ever recorded in that month of the year.[117]
| Date | Code Level | Location | Reason |
|---|---|---|---|
| 22 – 25 June | Yellow | Northern Provinces; Wadden Islands | |
| Orange | Rest of the country | Expected temperature up to 36 °C (97 °F)[118] | |
| 26 – 27 June | Orange | Northern Provinces; Wadden Islands; Zeeland | |
| Red | Rest of the country | Expected temperature up to 40 °C (104 °F)[119] | |
| Upgraded from preemptive code orange | |||
| First-ever code red alert for heat[119] | |||
| Except Gelderland, Limburg, Noord Brabant, and Overijssel, the rest of the country was downgraded to orange on 27 June |
On the afternoon of 25 June, the preemptive nationwide code orange of 26 June was upgraded to code red except for the north, Wadden Island, and Zeeland. The code red alert was extended to 27 June when data suggests that the heat dome shifted later than expected.[119]
The all-time record of June dated back to 1947, when it reached 37.9 °C (100.2 °F) in Venlo on 27 June, it was broken by 39.4 °C (102.9 °F) in Ell on the afternoon of 26 June, 2026.[119] Previously, on 25 July, 2019, the absolute all-time heat record from 1944 was broken by 40.7 °C (105.3 °F) in Gilze-Rijen,[120] data suggest that a third heatwave is coming in early-July, which could potentially set a new record. [121]
Severe thunderstorms
[edit]On the night of 19 June, a severe thunderstorm tore through the entire Benelux area. The Netherlands recorded over 188,307 lightning strikes, breaking the daily record.[122] Significant storm damage took place in eastern Groningen, which is suspected to be a EF-2 tornado.[123] A wedding with 150 guests in Twente was flooded during the ceremony, flash flood occurred after a river bank burst.[124] A 25-year-old woman died when a tree fell on her car near Coevorden.[125] A NL-Alert was issued the following morning for the overwhelmed emergency service due to the widespread response to the damages to houses and trees.[126][127][128]
On 26 June, KNMI issued level 10 on the heat force scale[129], the fourth time in De Bilt since the scale's establishment in 1991.[119] This day also classed the first-ever "super-heatwave" in the Netherlands, which temperature stayed above 35 °C (95 °F) in three consecutive days.[130] The red alert has led to the cancellation of various events, including the Dutch U18 and U20 athletics championships,[131] and the Defqon.1 music festival in Biddinghuizen.[132][133] On 27 June, numerous events were also cancelled as the Rotterdam-Rijmond safety region declared it unsafe to host any forms of outdoor mass gathering.[134]
A code orange alert was issued for severe thunderstorm from the afternoon of 27 June to the early morning of 28 June, worse than the night of 19 June due to higher amount of atmospheric energy.[135] A total of 413,860 lightnings were recorded[136], breaking the record that just set a week ago by almost threefold.[137] Various regions across the Netherlands was hit with hailstone up to 5 cm.[138][134] A tram in Scheveningen was hit by a lightning strike and stalled.[139] A monumental barn at Oldenoordweg in Toornwerd, Groningen was burnt down after being struck by lightning.[140] There were several major house fires caused by lightning strike across the Netherlands. [134] Reports of flash flooding also appeared across Dutch cities. [134]
Other heat disruptions
[edit]During the second heatwave there were numerous reports of drawbridge malfunctions across the Netherlands.[141][142][143] Many municipalities halted all drawbridge operations, stranding ship traffic.[144][145][146]
Norway
[edit]In Norway a heatwave is defined as five or more consecutive days of 27 °C (81 °F) or higher.[147] As of 23 June such a stretch has not occurred[148] – temperatures have, however, been higher than normal since early June.[149] On 28 June, temperatures in Kongsberg and Nelaug fit the definition of heatwaves in Norway.[150][151]
Poland
[edit]Given low May rainfall, Poland faced considerably increased risk of wildfires in its forests and national parks as the Omega block moved east.[152] Several municipalities set up water curtains for the public, and the national railway PKP Intercity, warning of deformed tracks and sagging power lines, offered full refunds for booked weekend travel.[153] On June 28, 2026, 40.5 °C (104.9 °F) was recorded in Słubice. This is the highest temperature ever recorded in Poland,[154] the previous record being 40.2 °C (104.4 °F) in 1921, 105 years ago.[155]
On June 28, it was reported that a woman had died in Chełm due to high temperatures.[156] On the same day, during an edition of the LOTTO PolandBike Marathon held in Marki, two race participants, aged 30 and 71, died after failing to reach the finish line. The body of the first cyclist was discovered later that day a short distance from the race route, while the second was found on June 29 following an extensive search involving police, fire brigades, search and rescue teams and drones. Initial reports suggested that the extreme heat, with temperatures reaching nearly 40 °C (104 °F), was a possible contributing factor to their deaths. The exact circumstances remain the subject of an ongoing investigation.[157][158]
Portugal
[edit]Portugal faced the threat of 42 °C (108 °F) high temperatures with yellow weather warnings issued initially only in the districts of Leiria, Lisboa, Santarém, Setúbal, Portalegre, Évora, and Beja, before being expanded to all districts in Portugal except for Faro district for significant public health and "very high" wildfire risks.[159][160][161] Continental Portugal experienced nearly nation-wide tropical nights, meaning that the daily low temperature was above 20 °C (68 °F) from the Alentejo to the Algarve.[162][163][164] Mora recorded a temperature of 40.3 °C (104.5 °F) on 27 May, setting the hottest May record on nationally. In addition, 22 stations recorded the highest maximum-temperature on record, with one on 26 May and the rest on 27 May.[165]
Slovakia
[edit]From mid-June 2026, the Slovak Hydrometeorological Institute (SHMÚ) issued repeated high-temperature warnings as the second European heatwave reached Slovakia, with heat warnings already in force on 19 June.[166] On 22 June, SHMÚ issued first-level heat warnings for the following day covering the Bratislava Region, most of the Trnava Region and Nitra Region and the districts of Krupina and Veľký Krtíš, where temperatures were expected to exceed 33 °C (91 °F).[167] On 24 June, the institute raised the warning to second level for 25 June across the entire Bratislava Region, most of the Trnava and Nitra regions and the districts of Krupina and Veľký Krtíš, where highs of around 35 °C (95 °F) were forecast between 12:00 and 18:00, while first-level warnings for temperatures up to 33 °C (91 °F) applied to the Trenčín Region, most of the Banská Bystrica Region and several districts in the south and east.[168] Second-level warnings were subsequently extended to the Danubian Lowland districts of Dunajská Streda, Komárno and Nové Zámky and to the Záhorie districts of Senica, Malacky and Skalica, all facing highs near 35 °C (95 °F).[169]
Forecasters expected the heat to intensify over the weekend, with highs near 38 °C (100 °F) on 27 June and 39 °C (102 °F) to 40 °C (104 °F) in south-western Slovakia on 28 June, peaking on 29 June at 40 °C (104 °F) to 41 °C (106 °F) ahead of an advancing cold front. Meteorologists noted that, unlike the heatwave of July 2007—during which the national record of 40.3 °C (104.5 °F) was set at Hurbanovo on 20 July[170]—the 40 °C (104 °F) threshold could be exceeded on several consecutive days in the south-west.[171] By 24 June, around 44% of Slovakia was experiencing significant to extreme soil drought and SHMÚ warned of a high risk of wildfires over the weekend, while the Public Health Authority of the Slovak Republic (ÚVZ SR) issued advisories for vulnerable groups, including children, the elderly, pregnant women and the chronically ill.[172] In the event, the temperature did not drop below 26.3 °C (79.3 °F) overnight in Bratislava.[173][41]
Slovenia
[edit]Between 25 and 27 May, the Slovenian Environment Agency (ARSO) recorded temperatures above 30 °C (86 °F) at several stations in its network, reaching as high as 33.5 °C (92.3 °F) at Cerklje ob Krki Airport on 27 May.[174]
On 18 June, ARSO announced that it expected highs between 30 and 35 °C (86 and 95 °F) to continue until the end of the month, thus marking the beginning of the first heatwave to affect Slovenia in 2026, in accordance with the agency's definition of a heatwave as a period of time when average temperatures of at least 24 °C (75 °F) in central and eastern Slovenia or 25 °C (77 °F) in western Slovenia, respectively, are recorded on three consecutive days.[175] On 21 June, temperatures were expected to reach 36 °C (97 °F) in western Slovenia and 33 °C (91 °F) in other parts of the country.[176]
On 24 June, ARSO announced that it expected the peak of the heatwave to occur on 28 or 29 June, with temperatures likely to reach around 35 °C (95 °F) in most of Slovenia and close to 40 °C (104 °F) in parts of the Littoral in the country's west. The agency announced that the highest heat warning would be in effect for most of southwestern Slovenia on 27 and 28 June, with the second-highest heat warning in effect for the rest of the country.[177]
On 27 June, ARSO recorded a temperature of 37.4 °C (99.3 °F) in Dolenje, followed by 37.2 °C (99.0 °F) in Podnanos, as temperatures rose above 33 °C (91 °F) in almost all lowland areas of the country. The agency extended its previous heat warnings to 29 and 30 June as it expected the ongoing heatwave to end with the arrival of thunderstorms on 1 July.[178]
On 28 June, temperatures exceeded 36 °C (97 °F) at several ARSO stations in southwestern and central Slovenia. That day, a temperature of 37.5 °C (99.5 °F) was recorded in Podnanos and became the highest value measured during this heatwave, whilst a temperature of 37.1 °C (98.8 °F) at the agency's station in the Bežigrad District of Ljubljana set a new June temperature record for that location.[179]
Spain
[edit]Temperatures in Spain began rising on 19 May. By 28 May, the Santander Airport recorded six days with temperatures higher than 30 °C (86 °F). Before then, only two days prior to June recorded temperatures of over 30 °C (86 °F). In addition, the Badajoz Airport had temperatures over 38 °C (100 °F) for the first time in May. Temperatures across the southwestern quadrant of Spain recorded highs of 37–39 °C (99–102 °F).[180] Vinebre recorded a temperature of 39.5 °C (103.1 °F), setting the hottest May temperature ever recorded in Catalonia.[181] The Health Ministry recorded 101 heat-related deaths in May, the highest ever recorded for the month of May since records began in 2015.[182] On 22 June, temperatures peaked at 45.1 °C (113.2 °F) in Andújar, southern Spain.[183] Since the beginning of the Heatwave on 21 June 108 fatalities have been recorded.[184] A 90-year-old man died in a nursing home in Bizkaia and a 68 year old man died in Almeria from heatstroke.[185]
On 25 June, the Daily Mortality Monitoring System (stylized MoMo)[186] statistically calculated that 212 deaths were linked to the heatwave.[60]
By 26 June, 327 heat-related deaths had been registered since Sunday 21 June.[187]
Sweden
[edit]Orange warnings were issued for southern Sweden from 25 June onwards as heatwaves moved their way northward from the rest of the continent.[188] Temperatures exceeded 30 degrees first time on that day in Ronneby-Bredåkra with 30.6 °C (87.1 °F)[189] and have been forecasted to reach up to 35 °C (95 °F) until Monday, 29 June.[190] On 25 June, a 600 m long freight train derailed on the main route between Göteborg and Borås near Bollebygd because of heat-induced track warping. No one was injured in the accident, and as of 27 June 2026,[update] there is no estimate of when the track will re-open.[191][192]
Switzerland
[edit]The unusually early heatwave set new daily highs in many stations in the latter part of May.[193] The 0 °C (32 °F) isotherm, which is to say the freezing level, rose to 4,328 m (14,199 ft) on 25 May, the third highest recorded in May.[194] Biasca recorded 34.8 °C (94.6 °F) on 28 May, just 0.3 °C (0.54 °F) below the May national record and the highest May temperature ever recorded on the southern side of the Alps.[193] Overall, the month of May was 1.8 °C (3.2 °F) above average and the fourth hottest on record.[193][195]
On 25 June, MétéoSuisse announced they had exceeded 37 °C (99 °F) in June for the first time since modern records began in 1946: 38.0 °C (100.4 °F) in Basel[61], which was hit already the following day with 38.8 °C (101.8 °F) in Binningen.[196] And on the 27th Glacier Monitoring (GLAMOS) announced that the second-earliest melt-off of the winter's accumulated ice and snow was expected on Monday. (Its records began in 2000, and the earliest previous melt-off was marked on 26 June 2022.)[41]
United Kingdom
[edit]On 25 May, the highest spring time temperature ever recorded in Great Britain was recorded in Kew Gardens at 34.8 °C (94.6 °F), exceeding the previous record by over 2°C.[197][4][198] The next day on 26 May, the previous day's record was broken again at Kew Gardens with a reading of 35.1 °C (95.2 °F).[199][200] The heatwave has led to recorded 34.3 °C (93.7 °F) temperatures onboard London Underground trains and stations,[201] and at least 15 people died in water-related incidents across the country.[202]
On 22 June, the Met Office issued a red extreme heat warning for 24 and 25 June, the second time in history that such a warning has been issued.[203] The June temperature record was broken three days in a row from 24 – 26 June. On 24 June, the record was broken in Gosport, Hampshire with a reading of 36.1 °C (97.0 °F), on 25 June, in Merryfield, Somerset with a reading of 36.7 °C (98.1 °F) and on 26 June, in Lingwood, Norfolk with a reading of 37.7 °C (99.9 °F).[204] The record before the heatwave was 35.6 °C (96.1 °F) set in 1957 and 1976.[205]
The extreme heat was also felt in the Crown Dependencies of Jersey, Guernsey, and the Isle of Man.[206] On 25 June, Jersey reached a temperature of 39.3 °C (102.7 °F). This is the highest temperature ever recorded on the island since records began in 1894.[207]
On 25 June, the highest minimum on record was broken for the second time: 23.5 °C (74.3 °F) overnight in Cardiff, Wales.[61]
Highest temperature by country
[edit]| Country | Temperature | Record | Date | Location |
|---|---|---|---|---|
| 40.1 °C (104.2 °F) | June | 29 June | Bad Deutsch-Altenburg[27] | |
| 38.4 °C (101.1 °F) | 26 June | Kleine-Brogel | ||
| 37.5 °C (99.5 °F) | 28 June | Imotski[38] | ||
| 41.9 °C (107.4 °F) | All-time | 28 June | Doksany[208] | |
| 37.0 °C (98.6 °F) | All-time | 27 June | Ødum | |
| 44.3 °C (111.7 °F) | 23 June | Pissos[12] | ||
| 41.7 °C (107.1 °F) | All-time | 28 June | Neißemünde-Coschen[209] | |
| 40.7 °C (105.3 °F) | June | 28 June | Budakalász[92] | |
| 30.6 °C (87.1 °F) | May | 26 May | Shannon Airport | |
| 39.2 °C (102.6 °F) | 26 June | Piacenza | ||
| 38.6 °C (101.5 °F) | June | 26 June | Findel[210] | |
| 39.4 °C (102.9 °F) | June | 26 June | Ell | |
| 40.5 °C (104.9 °F) | All-time | 28 June | Słubice[154] | |
| 40.3 °C (104.5 °F) | May | 27 May | Mora[165] | |
| 39.8 °C (103.6 °F) | June | 27 June | Kamenica nad Hronom | |
| 37.5 °C (99.5 °F) | 28 June | Podnanos[179] | ||
| 45.1 °C (113.2 °F) | 22 June | Andújar[12] | ||
| 36.8 °C (98.2 °F) | June | 27 June | Osby | |
| 39.0 °C (102.2 °F) | June[211] | 27 June[212] | Binningen[12] | |
| 37.3 °C (99.1 °F) | June | 26 June | Santon Downham[12] | |
| 36.4 °C (97.5 °F) | All-time | 25 June | Guernsey Airport | |
| 39.3 °C (102.7 °F) | All-time | 25 June | Maison St. Louis Observatory |
Notes
[edit]- ^ Astronomical summer did not begin until 21 June, its meteorological equivalent having, by European standards, already begun on 1 June.
See also
[edit]- Climate change in Europe
- 2025 European heatwaves
- European heat wave
Media related to 2026 European heat waves at Wikimedia Commons
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External links
[edit]- GeoSphere Austria
- IRM/KMI Royal Meterological Institute of Belgium
- National Institute of Meteorology and Hydrology Bulgaria
- Državni hidrometeorološki zavod Croatia
- Danmarks Meteorologiske Institut Denmark
- Ilmatieteen laitos Finland
- Météo France
- Deutscher Wetterdienst Germany
- Met Éireann Ireland
- Servizio Meteorologico dell'Aeronautica Militare Italy
- MateoLux Luxembourg
- Koninklijk Nederlands Meteorologisch Instituut Netherlands
- Meteorologisk institutt Norway
- Instituto Português do Mar e da Atmosfera Portugal
- Slovenský Hydrometeorologický Ústav Slovakia
- Agencija Republike Slovenije za okolje Slovenia
- Agencia Estatal de Meteorología Spain
- Servei Meteorològic de Catalunya Catalonia (Spain)
- Sveriges meteorologiska och hydrologiska institut Sweden
- MateoSwiss Switzerland
- Met Office United Kingdom
- 2026 disasters in Europe
- 2026 disasters in France
- 2026 heat waves
- Climate change in Europe
- Heat waves in Europe
- June 2026 in Belgium
- June 2026 in France
- June 2026 in Germany
- June 2026 in the Netherlands
- May 2026 in Europe
- May 2026 in France
- May 2026 in Germany
- May 2026 in Ireland
- May 2026 in Portugal
- May 2026 in the Netherlands
- May 2026 in the United Kingdom
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