A single Thursday stretched from evacuated Greek beaches to Romanian nuclear shutdowns, revealing how ordinary European summers have been permanently rewritten.
At Kew Gardens in southwest London, a thermometer climbed to 38.1°C on Thursday, provisionally making it the hottest day of 2025 so far for the United Kingdom — the fifth heatwave of the summer, and England's ninth consecutive day above 35°C. Across the continent, an estimated 135 million people experienced temperatures exceeding that same threshold. These were not isolated spikes.
They were the simultaneous expression of a climate system under sustained pressure, playing out from the English Midlands to the Aegean coast. In northern Greece, the consequences were visceral. More than 250 tourists and residents were evacuated from the resort village of Siviri by a fleet of small boats as a wildfire, driven by gale-force winds, advanced on homes and holiday villas. Many people had no time to change out of their swimwear.
Meanwhile, in England's West Midlands, grassfires broke out and several homes were set alight, requiring emergency treatment for at least two people. France, for its part, recorded a 17th consecutive day of extreme heat — the third-longest heatwave ever measured in that country. The strain extended beyond the visible flames. In Romania, authorities initiated a complete shutdown of a nuclear power plant after water levels in the Danube fell too low to sustain adequate cooling.
Nurses in the UK reported fainting in what their union described as "inhumane" working conditions.