France's Maximum Heat Alert Expanded for Tuesday, June 23

France is bracing for continued extreme heat as the maximum "red alert" for high temperatures expands to 54 of the country's 100 departments on Tuesday, June 23, 2026. This widespread alert impacts nearly 39 million people, representing about 55% of the population.

Météo France, the national meteorological institute, has updated its warnings, placing an additional 35 departments on "orange alert," the second-highest level. Some of these areas could be upgraded to red alert by Wednesday. Temperatures are expected to reach record highs, with overnight lows ranging from 20 to 26 degrees Celsius and daytime highs soaring. Cities like Bordeaux could see 43 degrees Celsius, while Paris and Nantes are forecast to reach 41 degrees Celsius.

This heatwave has already caused significant disruptions. Dozens of long-distance trains without air conditioning were canceled, and about 10% of commuter trains in Paris were affected. Additionally, 1,352 educational centers have closed, and many others have adjusted schedules to avoid classes during the hottest hours. With temperatures rising, authorities are also warning about the dangers of drowning, as 13 people have died in water-related incidents between Saturday night and Monday morning. Last summer, France recorded 409 drowning deaths.