However,
Heat wave france, why we:
Since August 8, 2025, France has experienced an episode of heat wave. Meanwhile, But, this week, temperatures should go down … For example, until reaching a difference of 20 ° C in places. Consequently, How is it possible? Moreover,
Since August 8, 2025, France has undergone a scorching episode, another. Consequently, A majority of departments have also been declared as orange vigilance by Météo-France. Moreover, This suffocating heat wave has been the second since the start of the summer.
However, this week, from August 18 to August 24, 2025, temperatures will finally decrease. Moreover, The planned gap is immense. Furthermore, sometimes going as far as the loss of 20 ° C at a time, in a very short time. Nevertheless, But, why and how are we going to lose 20 ° C so quickly?
What to expect heat wave france, why we this week in France this week?
On this Monday. August 18, 2025, even if the heat wave is slowly starting to retreat, 7 departments are still maintained under orange vigilance, according to Météo-France:
- Aude
- THE Bouches-du-Rhône,
- the Gard,
- Hérault,
- THE Pyrénées-Orientales,
- the Our
- the Vaucluse.
From this Monday. temperatures are planned to decrease across the country with, in particular, the presence of thunderstorms, which can be violent. According to Météo-France forecasts. “After a night from Monday to Tuesday still hot around the Mediterranean, heat wave will be lifted on Tuesday [19 août 2025] morning, with the arrival of thunderstorm rains from the west. »»
What is a “cold drop of altitude” and what does it mean?
According to the Keraunos Observatory. the French Observatory for Tornades and Violent Thunderstorms, the drop in temperatures on Monday is explained by a ” cold altitude drop Who will cross the whole country. It is a cold air pocket, located more than 5,000 meters above sea level.
Coming from the ocean. this cold air pocket will therefore confront hot air, thus causing “A conflict of air masses”as our colleagues from TF1 sum up. It will lead to the formation of thunderstorms from Brittany to the Pyrenees. where they are expected with: ” Intense rains, hailstorms and violent gusts of wind » But also, a general heat wave france, why we drop in temperature.
These thunderstorms. on the sidelines at the start of the week, will intensify and become violent between Tuesday and Thursday throughout the country. At the end of the week, however, an anticyclone will be back.
The end of a difficult scorching episode for humans. ecosystems
This refreshing episode therefore ends a scorching episode which has not been without consequences in France. For humans. first: Public Health France indicates that since August 8, day, the start of the heat wave, emergency passages and SOS doctors have increased, ” mainly for hyperthermia / heat stroke ».
The cultures also suffered from the lack of water, burns and, therefore, from loss of yield. The farms are also exposed to greater health risks during hot weather. Not to mention the very important risk of fires. such as the one in the Aude at the beginning of August.
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