Overview
- On 27 June 2026 the Möckern‑Drewitz weather station measured 41.8°C, the highest single‑day temperature recorded in Germany.
- A prolonged heatwave from 18 to 28 June produced that early seasonal peak and set the conditions for record highs across the country.
- Analysis of 488 stations found 244 reported a new season record for days at or above 30°C, with Rheinfelden recording a striking 54 such days.
- The long stretch of clear, hot weather was caused by repeated strong high‑pressure systems and led to too little rain, drying soils, low water levels and greater wildfire and crop stress.
- The Deutscher Wetterdienst will finalize whether summer 2026 ranks among the hottest after it has evaluated complete August data, and short‑range forecasts point to another pulse of heat later in August.