Early Heat Dome Shatters May Records as France’s Heat Begins to Ease

Overview

• A persistent high‑pressure 'heat dome' drove an unusually early wave of heat across France this week, forcing Météo‑France to place about 11 départements in orange vigilance by Friday after peaking at 17 earlier in the episode.
• Météo‑France said more than half of the country logged at least one monthly temperature record, with provisional counts of roughly 109 record minima and 266 record maxima during the core period.
• Authorities reported several heat‑related deaths, with the government listing seven fatalities, and local officials activated emergency measures such as school afternoon closures, cooling shelters and traffic restrictions in Paris to protect vulnerable people.
• The heat worsened air quality with critical ozone episodes in regions including Île‑de‑France and Rhône‑Alpes and disrupted services and businesses through rail cancellations, tram interruptions, tourism cancellations and losses in farming output.
• Forecasts show the heat retreating from the northwest toward the weekend with an expected end of the episode by Sunday, but officials warn that very high temperatures, pollution and scattered storms will keep local impacts for several days and have prompted work on a national 'plan d'endurance' for the summer.