Europe braces for extreme heatwave as temperatures surge toward 40C
Europe faces an unprecedented late-May heat surge, with temperatures soaring toward 40°C in some regions as a "heat dome" locks hot air over the continent. France’s national weather service, Météo France, activated its first-ever May heatwave alert—yellow-level—for 18 departments, including Paris and western regions, where daytime highs will exceed seasonal norms by 8–10°C through Tuesday . Romania’s National Meteorological Administration (ANM) forecasts Wednesday as the peak of this early heatwave, with shade temperatures hitting 33°C—nearly 10°C above the May average—after a weekend of heavy rains .
Portugal’s IPMA warns of sustained heat above 30°C across much of the country, while Slovakia’s southern regions brace for highs of 32°C under a persistent high-pressure system . In Switzerland, the Whitsun weekend brought the year’s first "short heatwave," with Basel and Sion recording daytime peaks of 31°C, though nighttime cooling kept official heatwave criteria unmet . Germany’s Hesse state faces extreme wildfire risk as temperatures climb without rain, prompting forestry officials to urge caution .
The heat’s grip will loosen midweek in parts of Europe as a cut-off low (dana) approaches the Iberian Peninsula, triggering heavy storms in northern Spain and disrupting the stable conditions . Romania and Portugal, however, will see only brief afternoon showers, with heat dominating through the weekend . Events across the Netherlands have already adapted, distributing water and shade as Tuesday’s forecast predicts another day above 30°C .
Climatologists link the early heatwave to a persistent high-pressure ridge stretching from North Africa to Scandinavia, a pattern amplified by long-term warming trends. While May heatwaves remain rare, this event follows 2025’s record-breaking spring temperatures, which saw April highs exceed 30°C in parts of Central Europe. Forecasters caution that the heat dome’s slow movement could prolong the episode, with southern Europe—particularly Spain’s Andalusia and Italy’s Po Valley—facing the highest risk of 38–40°C readings by Thursday .
> Background: **TRENDING — Europe shatters May records as heatwave pushes temperatures past 32C** — *10 hours ago*
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Europe braces for extreme heatwave as temperatures surge toward 40C


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