Scientists say repeated heatwaves are a clear sign of global warming driven largely by the burning of fossil fuels, and warn that such events are becoming more frequent, longer, and more intense.

France imposes restrictions amid red alerts

In France, authorities placed 35 departments on red alert, with numbers expected to rise to 49 out of 96 mainland regions. While the annual Fête de la Musique went ahead, alcohol consumption was banned in public areas under the highest alert level to reduce health risks. The Louvre also cancelled a planned free concert, while residents in Paris sought relief in authorised swimming areas along the Canal Saint-Martin.

Germany and Spain cancel events as temperatures soar

In Germany, the final of the Berlin Open tennis tournament was suspended due to severe weather conditions as temperatures topped 30°C and storms moved through parts of the country. In Spain, a public screening of a national football match in Madrid was cancelled amid extreme heat forecasts, with temperatures expected to reach up to 44°C in some regions under the country’s first official heatwave of the year.

Widespread heat warnings across Europe

Elsewhere, Switzerland issued warnings for a strong heatwave with temperatures up to 37°C and no clear end in sight. In the Balkans, countries including Croatia, Serbia, North Macedonia, Bosnia, and Montenegro prepared for temperatures around 35°C, with health advisories issued to the public.

UK braces for “tropical nights”

In Britain, the Met Office issued amber warnings for extreme heat from Monday to Thursday, with temperatures forecast to reach 38°C in parts of England and Wales. Officials also warned of “tropical nights,” where temperatures do not fall below 20°C, particularly across southern regions.