In this mid-August 2025, France crosses its second heat wave of the year, the 51st recorded since 1947, with temperatures exceeding 40 ° C in the Southwest this weekend, with 80% of the territory on orange alert.
A contrasting regional panorama
The heat wave unequally strikes France: the South West is the most affected, with peaks at 42 ° C raised in Aquitaine departments on Monday.
In the north and east, the temperatures are high but less extreme, around 35-37 ° C, while Brittany and the North West benefit from a relative respite with maximum under 30 ° C, thanks to sporadic ocean flows.
Planned evolution: rebound and gradual decrease
Planned dates at the end of the heat wave © The weather channel
An important rebound is expected this weekend of August 16-17 in the Southwest, before a gradual drop next Monday, bringing the maximums under 35 ° C by next week. Even if the heat wave ends, it will continue to be hot, probably until the end of August, which promises to be far superior to the season.
The heat wave out of two stages: a weekend still very hot, then a gradual reflux at the start of the week.
