2025 European heatwaves

2025 European heatwaves
Sea surface temperature anomalies in the Mediterranean on 22 June
TypeHeatwave
Areas
Start dateApril
End dateSeptember
Peak temp. 50.5 °C (122.9 °F), recorded at Silopi, Turkey on 27 July 2025
Losses
Deaths14,507+
16,500+ (estimated)

From April to September 2025, parts of Europe were affected by multiple heatwaves. Record-breaking temperatures came as early as April; however, the most extreme temperatures began in mid-June, when experts estimated hundreds of heat-related deaths in the United Kingdom alone. National records for the maximum June temperature in both Portugal and Spain were broken when temperatures surpassed 46 °C (115 °F), whilst regional records were also broken in at least ten other countries. The heatwaves have fueled numerous wildfires across Europe, causing further damage to ecosystems, property, human life and air quality.

Scientists found that by 18 September, around 16,500 people may have died as a result of climate change during the summer. This is around three times higher than the number of deaths without human-induced climate change (800 deaths). It equates to about 65% deaths in the heatwave due to global warming. In September, the national weather agency for Spain announced that the summer had been the hottest on record, averaging 24.2 °C (75.6 °F) between 1 June and 31 August.