2022 European Heat Wave

From June to August 2022, persistent heatwaves affected parts of Europe, causing evacuations and over 20,000 heat-related deaths, making these heat waves the deadliest meteorological events in 2022. The highest temperature recorded was in Pinhão, Portugal, on 14 July.

In June 2022, temperatures of were recorded in parts of Europe, with most severe temperature anomalies in France, where several records were broken.

A second more severe heatwave occurred in mid-July, extending north to the United Kingdom where temperatures surpassing were recorded for the first time. The heatwaves were part of climate change in Europe.

A third heatwave began in August with parts of France and Spain expected to reach temperatures as high as . A prolonged hot period also hit the United Kingdom.

Although temperatures in most places in Europe subsided in August, a smaller heatwave impacted France on 12 September, with temperatures reaching .

As a result of the heatwaves, widespread droughts occurred across the continent.

In September 2022 it was reported that the European Union saw 53,000 excess deaths in July, although no causal link was attributed.

Meteorology

The June heatwave was the result of an interaction among the high pressures that generate atmospheric stability; Tropical Storm Alex, the strong sunshine of the boreal summer and an air mass emanating from North Africa that had entered the Iberian Peninsula loaded with suspended dust that caused haze in the centre and south of the peninsula.

Climatologists linked the extreme heat to the impact of climate change, and experts predict that changes in the jet stream as a result of climate change will cause heatwaves with increasing frequency in Europe. Furthermore, due to the jet stream, the increase in heatwaves for European countries is three-to-four times higher than other countries in northern mid-latitudes, such as the United States.

By country

Andorra

On 15 June, Andorra's weather agency, the National Meteorological Service of Andorra, issued a "significant danger weather warning" due to heat. The weather warning was expected to last until 27 July with 24 and 25 July being the days in which the agency expected to raise the warning to "extreme danger weather warning". In the nation's capital, Andorra la Vella, temperatures were recorded to be over , far higher than the average for the time of year.

Austria

On 30 June, a temperature of was recorded in Bad Deutsch-Altenburg.

On 5 August, a temperature of was recorded in Austria's capital city Vienna.

Belgium

On 19 July 2022, the temperature reached in Uccle, with the highest temperature that day being in Kapelle-op-den-Bos.

Croatia

The heat dome which caused extreme temperatures in north-west Europe was expected to affect Croatia from 21 to 24 July. Temperatures peaked on 23 July, reaching in cities including Zagreb, Osijek, Karlovac, Slavonski Brod, Knin. The highest temperature of was recorded in Valpovo. Temperatures exceeding were also recorded, but only at unofficial weather stations. The heat was ended the same day by a cold front in continental Croatia, but higher temperatures continued in the southern part of the country, which had been suffering a drought since 2021.

Denmark

On 20 July 2022 it reached in Abed, Stokkemarke Parish, Lolland, breaking the all-time temperature record for that month. Copenhagen measured its record highest temperature when it reached , breaking the previous 2006 record. In Vordingborg it reached , and stayed above for 4 hours, another Danish record.

France

June heatwave

On 16 June, Météo-France activated its red alert in 12 departments and its orange alert in another 25 because of the heatwave. The departments on red alert were mainly those located in the south-west, along the Atlantic coast and the south; the heat was generally less severe further north and east. The heatwave was the earliest in the year since records began and marked the fourth time that a red heat alert had been issued since the protocol was activated after the 2003 heatwave.

On 17 June, the red alert was activated in 14 more departments, adding the Hautes-Pyrénées and the Pyrénées-Atlantiques to the 12 of the previous day. The orange alert was activated in 56 more departments.

July heatwave

An estimated total of more than were burnt by wildfires in Gironde, causing a total of near 37,000 people to be evacuated.

On 20 July, a baby died in an overheated car in the Pyrénées-Atlantiques. Authorities reported the deaths of two others in work-related accidents, which was raised to four on 28 July, all likely attributed to the extreme heat.

Temperatures exceeded even in Brittany, which is unprecedented. It reached in Biscarrosse (Landes), in Cazaux (Gironde), in Nantes (Loire-Atlantique), in La Roche-sur-Yon ( Vendée), in Lanmeur ( Finistère) and in Brest (Finistère).

This July heatwave aggravated the drought that had been ongoing in the country since the start of the year, making July 2022 the driest July since records began.

September heatwave

A smaller heatwave affected southwestern France on 12 September, where temperatures reached as high as in Bégaar. According to Meteociel, monthly temperature records were broken at more than 70 Météo France stations.

Deaths

On 6 September, Le Monde unveiled a report by INSEE, estimating the number of deaths due to the summer (between 1 June and 22 August) heat waves at 11,000 people in France.

Germany

June heatwave

From 14 to 20 June, Germany saw 1,636 probable heat-related deaths attributed to temperatures reaching .

July heatwave

From 11 to 17 July, Germany saw an all-deaths excess death rate of 16% followed by 23% in the week from 18 to 24 July. This corresponds to 6,502 excess deaths. On 20 July, temperatures in several states reached new records. Temperatures in Hamburg reached , in Lower Saxony and Saxony-Anhalt, in Mecklenburg-Vorpommern and in Schleswig-Holstein.

Deaths

The Robert Koch Institute put the death toll of the heatwaves at over 4,500.

Hungary

July heatwave

On 22 July, a temperature of was reported at Újpest in Budapest, which broke the maximum temperature record for that day in the city. On 23 July, a temperature of was recorded at Kiskunfélegyháza and Hódmezővásárhely, which almost broke the all-time temperature record of in Hungary.

August heatwave

On 2 August, Lake Velence reached record low water levels of due to severe drought.

On 3 August, the National Meteorological Service issued a third-level heat warning, with temperatures forecast to reach the low 30s and possibly exceeding from 4 to 6 August.

On 9 August, the National Directorate General for Water issued a press release, which stated that in the first 7 months of 2022, the amount of rainfall was 45 percent below average, making it the driest year since 1901.

On 16 August, the National Meteorological Service issued a third-level heat warning, with temperatures forecast to reach above from 17 to 19 August. On 17 August, a temperature of was recorded at Baja and Kübekháza, breaking the Hungarian temperature record for that day. Due to the heat warning, the Hungarian State Railways and Volánbusz were distributing mineral water at major railway stations, rural railway stations and bus stations.

Ireland

July heatwave

Met Éireann issued a high-temperature advisory on 13 July, with temperatures forecast to reach the high 20s and possibly exceeding from 17 to 19 July. Met Éireann subsequently issued a Status Yellow high-temperature warning for Ireland on 15 July, with "exceptionally" high temperatures possibly reaching .

On 18 July, a temperature of was reported at Allenwood one of the highest temperatures ever recorded in Ireland, breaking the Irish temperature record for July. The record highest temperature had been at Kilkenny Castle in June 1887, but some in recent years have called for the reassessment of the previous record.

Four people died in Ireland in water-related incidents in County Dublin, Laois, Kerry and Clare.

August heatwave

Met Éireann issued a high-temperature advisory on 7 August, with temperatures forecast to reach above for a period of five days or more from 10 to 14 August. Met Éireann subsequently issued a Status Yellow high-temperature warning for Leinster and Munster on 9 August, warning of "very warm or hot" from 11 to 13 August, with "maximum temperatures of ". Met Éireann extended its high-temperature warning nationwide from 12 August with highs of forecast.

On 12 August, a temperature of was reported at Oak Park, County Carlow, breaking the Irish temperature record for August.

Met Éireann issued a nationwide Status Orange thunderstorm warning on 14 August, with heavy downpours of rain and hail forecast.

On 15 August the forecasted thunderstorms caused flooding, mainly in County Roscommon and County Carlow.

During the heatwave in Ireland, two people died in water-related incidents in County Carlow and Clare. Four tourists were rescued by the coast guard in Howth after getting trapped on a sand bank off the Dublin coast, while an eight-year-old boy was rescued after he was swept out to sea at Doughmore Beach in West Clare.

Irish Water appealed to people to conserve water as much as possible and warned that 37 water supplies around the country were being impacted by drought conditions.

Italy

June to August heatwave

In Italy, the number of wildfires was three times the historical average by the end of June. Temperatures in Rome reached on 28 June. On 22 July, sixteen cities including Rome were put on the red state of alert, the country's highest heatwave alert to warn of serious health risks. A glacier collapse on the mountain of Marmolada on 4 July killed eleven, and was attributed to the abnormally warm temperatures. On 5 July, a state of emergency was declared in five northern regions in response to a severe drought in the Po valley, the worst in 70 years, and later for Tuscany.

On the evening of 18 July, a large fire began in Massarosa, Lucca, which has destroyed , reaching the province of Pisa.

On 19 July in Trieste, there was a blackout caused by a fire in Carso.

October heatwave

From 3 October a new heat wave (first high pressure from the Azores, and then an African anticyclone) hits Italy, bringing drought back to northern Italy despite another 4 previous months of absent rains. 30 °C is exceeded in many locations.

Luxembourg

On 18 June, the temperature reached in Luxembourg City.

On 19 July it reached in Luxembourg City, however the highest temperature that day was , measured in Schengen.

In August Luxembourg experienced multiple tropical days, on 3 and 4 August, temperatures of were recorded.

During the summer of 2022, Luxembourg experienced 15 tropical days: 2 in June, 6 in July, and 7 in August.

As result of the heat and drought, thunderstorms struck Luxembourg.

Netherlands

On 18 July, the Royal Netherlands Meteorological Institute issued a code orange heat warning for the central and southern provinces, with forecasted temperatures of in central provinces and in the south on 19 July. On 19 July the temperature in Maastricht reached .

Extreme heat is rare in the Netherlands; there have been only nine days with temperatures above since the start of measurement at the central weather station in 1901 (). In 2019, the Netherlands experienced temperatures surpassing for the first time in recorded history, with recorded in Gilze-Rijen.

According to satellite measurements, the southernmost Belgium–Netherlands border may have reached , which could be the highest provisional temperature recorded in the country.

On 6 September, after a long period of drought, thunderstorms hit the Netherlands. In the southeast there was a precipitation sum of 50-60 millimeters, caused by heavy rainfall. There was also a vast amount of lightning discharge.

Norway

June heatwave

On 28 June, Tromsø reached and Saltdal reached , both records for June. Mehamn reached , higher than its previous record for June by almost 10 degrees.

July heatwave

In July, the Norwegian Meteorological Institute reported that several areas may reach temperatures higher than . In Stavanger, temperatures are forecasted to reach . In Nordland, 20 and 21 July were forecasted to be the hottest days, with temperatures above . In Øst-Finnmark and Finnmarksvidda, temperatures on 21 and 22 July were predicted to reach . However, the Meteorological Institute does not believe that any national records will be broken.
On 22 July, Oslo measured its highest temperature since 2009, when the temperature reached 34.0°C.

Poland

On 19 June, temperatures in western Poland exceeded . In Słubice, the highest temperature was , which equals the record for highest June temperature (set in 2019). Once again, temperatures peaked at the end of the month. On 30 June, nine meteorological stations recorded record-breaking monthly temperatures. New monthly records were also set on 1 July. In Tarnów, the temperature reached , breaking the record for July. Krosno recorded , the highest temperature in that station's history.

On 22 June, a one-year-old boy mistakenly left in a car died in Szczecin. On 24 June, a man died in the queue of cars at the Polish-Ukrainian border by suspected overheating. On 26 June in Płońsk, a man died from suspected sunstroke.

Portugal

According to Instituto Português do Mar e da Atmosfera (IPMA), the heatwave was the longest and had the greatest area extension of any July heatwave in Portugal since 1941. Two towns in the central part of the country, Alvega and Mora, registered maximum daily temperatures between for ten days in a row, and Pinhão, a town situated in Northern Portugal's Douro Valley, recorded , the highest temperature ever recorded in the month of July.

In July, a total of were burnt by wildfires in Leiria, blocking a part of the A1 motorway that runs from Porto to Lisbon. In Algarve, a fire began in the city of Faro that spread to the Quinta do Lago resort. According to the Civil Protection Authority, at least 135 people were injured since the wildfires began. A pilot died when his waterbombing plane crashed in Vila Nova de Foz Côa while combating wildfires in the region.

At least 238 people died because of the heat, with 187 injuries. According to the Portuguese Health Ministry, the heatwave killed 1,063 people between 7 and 18 July. A further three people – two firefighters and a civilian – were killed in wildfires.

Slovakia

The first tropical day ( sk, tropický deň), a day with a temperature of over as defined by the Slovak Hydrometeorological Institute, was recorded in Dolné Plachtince on 22 June. On 26 June, several weather stations in the Eastern Slovakia and Banská Bystrica Region reported temperatures around . The inflow of warm air from the south-west intensified to the point when at least two weather stations recorded a temperature of or more from 27 June until the end of the month. On 29 June, several stations reported a temperature of .

Slovenia

Summer heat waves

On 28 June, the Slovenian Environment Agency (ARSO) recorded a temperature of in Podnanos. It surpassed Slovenia's previous record June temperature of , which was recorded in Metlika in 2000.

On 4 July, the ARSO reported that temperatures reached in Bilje. At the agency's stations in Podnanos and Volče near Tolmin, temperatures reached on 4 July and on 22 July, respectively. On 23 July, temperatures of or higher were recorded at several stations in the ARSO network, reaching at Cerklje ob Krki Airport and in Dobliče, with the latter remaining the highest temperature that was officially recorded in Slovenia during the month, meaning that the country's record July temperature of , which was recorded in 1950 in the nearby town of Črnomelj, was not surpassed.

In mid-July, the ARSO reported the status of droughts as significant or severe for most of western and central Slovenia. By the end of the month, agriculture was affected by droughts in the entire country, although they were especially severe in its south-west.

Along with periods of wind, long-lasting and severe droughts were mentioned as one of the key factors that facilitated the spread of the wildfires that broke out in the Karst Plateau around the southern part of the Italy–Slovenia border on 17 July and became the most extensive spread of wildfires ever recorded in Slovenia three days later, when it was reported that an estimated of land were burnt. By 25 July, the spread of the wildfires in the Karst Plateau was largely stopped, but minor fires were still appearing in the affected areas. It was initially estimated that of land were burnt and the estimate was updated to on 1 August, following a few minor spreads that were quickly stopped.

On 5 August, temperatures exceeding were recorded at five stations in the ARSO network, reaching in Dobliče, Litija and the Bežigrad District of Ljubljana, and in Celje and at Cerklje ob Krki Airport. On 18 August, temperatures of or higher were expected in many parts of Slovenia.

On 1 September, the ARSO reported that temperatures of or higher were recorded in Bilje on a total of 80 days, which surpassed the location's previous record of 76 days and a national record of 77 days in Podnanos, both of which were recorded in 2003.

Autumn heat waves

On 14 September, temperatures of up to were expected. The night between 14 and 15 September was unusually hot in many parts of Slovenia. The ARSO reported that temperatures did not fall below at several stations in their network, with the one at Portorož Airport not recording temperatures lower than during the night.

On 1 November, temperatures exceeded at several stations in the ARSO network, reaching in Dobliče and exceeding the location's previous record November temperature of . New records were set at several other stations in the ARSO network and Slovenia's previous record November temperature of , which was recorded in Metlika in 2015, was surpassed at four of the agency's stations.

Spain

June heatwave

A special heat warning was activated by the AEMET on 10 June, but only for 12 provinces and with yellow alerts in Aragon, Castilla-La Mancha, Catalonia, Extremadura and Madrid, with an orange alert for Andalusia. In this first stage, the unusual heat did not affect the Canary Islands, Galicia, the western Cantabrian coast and points of the peninsular Mediterranean coast. Initially, the AEMET predicted that the heatwave would last until 15 June, although it speculated that the heat might continue for the rest of the week.

On 11 June, high temperatures were recorded in the south-west of the peninsula, with in Seville. The alerts also remained activated for Aragon, Castile and León, Castilla-La Mancha, Catalonia and Madrid at a yellow level, and at an orange level for Extremadura and Andalusia. However, the weather conditions did not meet the official criteria to start the heatwave.

On 12 June, temperatures reached in Almadén (Ciudad Real), the highest value on the official start day of the heatwave. Temperatures above were also recorded at 47 stations in the AEMET network. The agency issued special notice number 3/2022 with information about the phenomenon and initiated a national plan of preventive actions with a level-assignment map.

On 14 June, the heatwave spread to the south of Galicia and the interior of the Cantabrian Sea. Tropical nights also continued, with temperatures that did not fall below in many provinces; in Jaén, a minimum of was expected. It was predicted that the peak of the heatwave would be reached on Friday, 17 June, with the possibility of record-breaking temperatures in Zaragoza, Lleida and Córdoba.

The only points in Spain that were not affected are Asturias, the Canary Islands and the autonomous cities of Ceuta and Melilla. In its daily statement, AEMET predicted the end of the weather episode for 18 June, with hot African air causing instability and a drop in temperatures.

Rubén del Campo of AEMET stated that it was the "most intense heatwave for mid-June of, at least, the last 20 years."

The first day of application of the "Iberian exception", by which the regulated price of electricity is calculated with a cap on gas for its generation, was 15 June. The PVPC is the voluntary price for the small consumer, for which more will be paid for electricity for compensation to thermal power plants and the greater use of gas and coal in the midst of a heatwave.

The last day of the Spanish heatwave was 18 June, an event termed "intense, extensive and extraordinary" according to AEMET, which determined that the springtime heatwave was among the earliest in the year since Spain began keeping records.

Estimates from the Carlos III Health Institute placed the total June death toll at 830.

July heatwave

In July, Extremadura experienced wildfires that spread to Salamanca in Castile and León and burnt more than .

On 14 July, the Carlos III Health Institute announced that at least 43 people had died on 10 and 11 July from the heat. On 16 July, at least 360 people died between 10 July and 15 July from the heat.

On 17 July, a wildfire was declared in el Pont de Vilomara in central Catalonia.

On 18 July, the Carlos III Health Institute reported an additional 150 heat-related deaths on 16 July, bringing the total death toll to 510, which was raised to 679 the next day. Final estimates from the Carlos III Health Institute placed the total July death toll at 2,063. However, in a report published later in the year, the July death toll was placed at 2,223.

On 24 July 2022, the Seville city council gave the ongoing heat wave the name Zoe, thereby making it the first named heat wave in the world.

August heatwave

Parts of Spain are expected to reach temperatures as high as .

In a report published later in the year, the August death toll was placed at 1,602.

Switzerland

On 15 June, a heat-wave alert was activated in the canton of Ticino. The following day, the cantons of Geneva and Vaud issued alerts.

On the 16 June, the Federal Office for Meteorology and Climatology ( MeteoSwiss) reported that temperatures of had been measured in the southern Alps, central Valais and the Lake Geneva region, but had only exceeded the threshold to be considered a heatwave (average temperature of throughout the day) at the local level.

On 17 June, MeteoSwiss activated orange and yellow alerts for heatwaves in most of the country. Maximum temperatures of were expected between 17 June and 21 June in low-lying areas of Valais and Romande Switzerland, and between 18 June and 21 June in the Basel region.

On 4 August, a temperature of was recorded in Geneva, the highest in the city all year.

United Kingdom

June heatwave

On 14 June, in view of the Met Office's forecast of high temperatures, the UK Health Security Agency (UKHSA) issued level 2 "alert and readiness" alerts in several regions for the period between midnight on 16 June and midnight on 18 June. The affected regions were London, the East Midlands, the East, South East and South West England.

On 15 June, the UKHSA issued level 3 "heat-wave action" alerts for London, East and South East England, maintaining level 2 alerts for the East Midlands and South West England. According to Met Office forecasts, the heat peak would arrive on Friday, reaching the necessary threshold for heatwave consideration, before temperatures dropped significantly on 18 June. On 17 June, London reached on the hottest day of the June heatwave.

July heatwave

On 8 July, the Met Office issued a heat-health alert in parts of England and Wales. On 15 July, the UKHSA increased the Heatwave Alert Level to 4, "illness and death occurring among the fit and healthy—and not just in high-risk groups". The Met Office issued its first ever red extreme heat warning after there were forecasts of over in some parts of England, and a national emergency was declared.

On 18 July, the first day of the red warning, temperatures reached in Santon Downham

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