Overview

• Paris experienced near-record temperatures of 30 °C in early May, followed by a sharp 12 °C drop over the weekend, accompanied by hailstorms and rain.
• April 2025 was the second warmest April globally and the fifth warmest in France since 1900, with temperatures averaging 1.7 °C above the 1991-2020 norm.
• A Nature study confirms that over 60% of global regions have seen more frequent and intense temperature swings since 1961, a trend linked to climate change.
• Heavy rainfall in mid-April caused flooding in Nouvelle-Aquitaine, with nearly 100 mm of rain falling in 48 hours across several regions in southwestern France.
• Scientists warn that rapid temperature reversals leave little time for adaptation, increasing risks for vulnerable populations and straining ecosystems and infrastructure.