Europe braces for late-September heat dome as 2026 summer breaks records for heat, drought and wildfires

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Europe braces for late-September heat dome as 2026 summer breaks records for heat, drought and wildfires
Europe swelters under extended heat warnings as Portugal expands alerts to 16 districts
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Europe’s 2026 summer ended with record heat, drought, and wildfire risks as the climate crisis intensified across the continent. Germany recorded its second-hottest summer since records began, with a peak of 41.8°C in Möckern-Drewitz, Sachsen-Anhalt, according to the German Weather Service . The Robert Koch Institute estimated 16,000 heat-related deaths by early September, including 9,800 in the last week of June alone, calling the figure conservative .
France faced historic soil drought, with Météo-France reporting near-absent September rainfall—just 8.2 mm nationwide from Sept. 1–20, and 84% of the country under severe drought conditions by Sept. 20 . The European Copernicus service recorded Western Europe’s June–July average at 21.62°C, 2.79°C above the 1991–2020 norm, marking the highest in its dataset since 1979 .
A new heat dome is forecast to bring unseasonable warmth to much of Europe by late September, with temperatures in parts of western, central, and northern Europe 8–12°C above average for the period. Southern Spain and Portugal may see highs near 40°C, while France’s central regions could reach 35–36°C . Greenpeace estimated Germany’s heat-related economic costs at €36 billion, citing productivity losses and healthcare strain .
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