Overview
- Météo-France’s annual review counts 58 severe-alert episodes in mainland France, including two red alerts reserved for heatwaves.
- Across the year, at least one department was under orange or red vigilance on 118 days, slightly above the 2012–2025 average of 115.
- Heatwaves triggered 32 days of vigilance, ranking 2025 second only to 2023, which the agency links to human-caused climate change.
- Rain-flood and thunderstorm warnings accounted for 37 episodes, concentrated in July, placing 2025 fifth for these hazards since 2012.
- The agency reports a 99.3% detection rate, 70% of alerts issued at least six hours ahead, and a 15.8% false-alarm rate mostly tied to hard-to-pinpoint storms.