Climatic conditions which are due, among other things, to the old tropical storm Dexter. Explanations.
It is becoming clearer.
France suffocates, sailing between Vigilance Orange heat wave (70 departments and Andorra this Friday, 66 departments and the Principality this Saturday) and Fire risks in that weekend of August 15. With temperatures which reach 40 ° C – “Punctually more” -In the southwest, very strong temperatures “On the Mediterranean Arc” and even 35 degrees announced in “Brittany, so far spared”next week is eagerly awaited. And for good reason. In sight: a real refreshment. But not at any cost.
28 degrees, no more
Indeed, the former tropical storm called Dexter will block on the Atlantic, according to the model presented on X by the weather chain.
A \ UD83C \ UDF00#FouTEFROIDE (or altitude depression) will end the heat wave in the south of the #France. This cocktail (very hot air on the surface and cold drop of altitude) could be explosive with #ores \ UD83C \ UDF29 \ UFE0F violent. A situation that our services follow closely. pic.twitter.com/sl34GJvZNn
– The weather channel (@lachainemeteo) August 15, 2025
Result, it is she who brings the heat wave. But it is also the one that should cause storms who will fall on the country from Tuesday. Clearly, it is a cold drop which should end the heat wave with real risks of violent thunderstorms.
If we trust the forecast of Météo France for Wednesday afternoon, it will rain almost everywhere.
But in the end, the cumulation could be quite significant throughout the south of the country. With temperatures that should not exceed 28 degrees (maximum planned in Montpellier).