Western Europe experienced its hottest June on record in 2026, according to the European Union’s Copernicus Climate Change Service (C3S). The region recorded an average temperature of 20.74°C, more than 3°C above the 1991–2020 June average. The extreme heatwave disrupted power supplies, forced school closures, and pushed temperatures to record levels across several countries.
The heatwave had severe consequences, with authorities reporting over 4,700 excess deaths in France, Belgium, Spain, and the Netherlands during June. The prolonged high temperatures also fueled wildfires across parts of Spain, Portugal, and France while worsening drought conditions. Scientists warned that climate change is making heatwaves more frequent and increasingly intense across Europe.
Globally, June 2026 ranked as the second-warmest June ever recorded, while sea surface temperatures reached a record high for the month. Climate experts said rising greenhouse gas emissions continue to drive global warming, increasing the likelihood of extreme weather events. Although a developing El Niño contributed to higher global ocean temperatures, researchers found that Europe’s record-breaking heatwave was primarily intensified by climate change.
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