Germany recorded a new all-time high of 41.7°C on Friday, 26 June 2026, according to preliminary data from the national weather service, as a record-breaking heatwave swept across Europe. This broke the previous record of 41.5°C set a day earlier in Drewitz. In the UK. The hottest day of June saw temperatures reach 37.3°C, with over 600 schools in England partially or fully closed due to the extreme heat — Across the continent, countries including Poland, Hungary, and the Czech Republic also set new temperature records, with Poland hitting 40.5°C and Hungary reaching 40.7°C.

Heatwave Triggers Fires, Health Warnings, and Disruptions

Germany’s heatwave sparked multiple wildfires, including one in Gohrischheide, where a forest contaminated with World War II-era munitions complicated firefighting efforts. A major operation near Traisen was temporarily halted after explosions occurred, forcing the evacuation of about 650 residents. In the UK, a wildfire in Derbyshire consumed about 200 hectares (990 acres) of land on Tintwistle Moor, with high humidity and heat increasing the risk of health impacts, according to the Met Office.

In Berlin, police deployed water cannons to cool the public, a measure typically used during protests. The vehicles sprayed water at popular spots like the Brandenburg Gate and Potsdamer Platz. In the UK, Avanti West Coast and Great Western Railway adjusted services due to the heat, with some cancellations and delays reported during the evening rush hour. London’s Tower Bridge and other tourist attractions also closed to visitors.

Record Temperatures and Public Health Advisories

Czechia set a new record of 41.9°C in Doksany, with its hydrometeorological institute warning that temperatures could rise further. In Poland, the government issued text alerts urging residents to avoid the sun and stay hydrated. Hungary and Slovakia also reported record highs, with temperatures reaching 40.7°C and 39.3°C, respectively. In the UK, the family of 13-year-old Hayden Jones-Powell, who drowned in open water, highlighted the hidden dangers of the heat, as authorities renewed warnings about swimming in unsafe conditions.

Germany’s heatwave also led to unusual weather patterns, with the German Weather Service reporting the country’s warmest night on record. The temperature in Kubschütz in Saxony remained above 29.4°C. In the UK, yellow thunderstorm warnings were issued for Scotland and northern England, with lightning recorded over the weekend.

Future Outlook and Precautions

According to the German Weather Service, the heatwave is expected to peak on Sunday, with temperatures between 37 and 41°C. Some areas may see thunderstorms, bringing heavy rain and strong winds. By Monday night, temperatures are expected to drop significantly, with lows between 19 and 23°C. In the UK, the heatwave is driven by a high-pressure “heat dome” over Western Europe, with the Met Office noting the increased health risks due to high humidity.

In South Korea, temperatures are expected to reach 34°C the following day, with ozone advisories in place for the Seoul metropolitan area. Despite high temperatures, low humidity in some regions has kept the perceived temperature lower than the actual reading. Rain showers are expected in parts of Gangwon and Honam provinces due to atmospheric instability.