A temperature increase will affect the whole of France Friday, Météo France announcement in a bulletin. And in particular the South West. 30 to 35 ° C are expected “in an almost generalized way in the southwest, possible points at 36 ° C, values sometimes unpublished for a month of May”, writes the organization of meteorological forecasts.
“For the 1st time this year, the 35 ° C bar (threshold of very strong heat) will be reached in the southwest of the country, in Aquitaine”, also declares the weather channel, “Locally, monthly heat records for a month of May could be brushed. “The forecasters recall that at average” at this time of the year, the average maximum temperatures vary between 18 and 24 ° C depending on the region. »»
🌡️Damain Friday, it will be hot almost everywhere. For the first time this year, the 35 ° C bar (threshold of very strong heat) will be reached in the southwest of the country, in #Aquitaine. Locally, monthly heat relevance for a month of May could be brushed. pic.twitter.com/F2Z20yvs2n
– The weather channel (@lachainemeteo) May 29, 2025
In Toulouse, 33 degrees are expected according to Météo France forecasts, a temperature approaching the city’s record for a month of May (33.4 ° C in 2022). “The heat records noted in France for a month of May are, for example, from 38 ° C to Pissos in the Landes in 2005, 35.4 ° C in Bordeaux and 36.2 ° C in Dax”, recalls the weather chain.
“More reasonable” temperatures on the Channel
Elsewhere in France the thermometer could also rise very high. Météo France is expecting at “29 ° C in Rennes, 27 ° C in Rouen, 31 ° C in La Roche-sur-Yon and Bourges, up to 33 ° C locally. »»
The 30 ° C could be reached in the Loire, Île-de-France, Burgundy-Franche-Comté, even Alsace. “The maximums can approach or reach 28 ° C in Strasbourg, 30 ° C in Nantes and Paris, 32 ° C in Lyon and Nîmes, 33 ° C in Toulouse and in Bordeaux”, according to the forecasts. On the other hand, “them remain more reasonable along the Channel, between 27 and 24 ° C. »»
These full summer measures should partially extend on Saturday, where stormy degradation is expected. On Sunday, “degradation should extend to an axis from southwest to northeast, logically lowering temperatures,” warns Météo France.