These records were recorded, mainly along the Atlantic coast, among 690 stations of the public operator spread across metropolitan France and having at least 30 years of readings.

Records fell from the Landes, in the south, where Biscarrosse experienced 42.6°C, to Seine-Maritime, the most northerly, where 38.2°C were reached at Cap de la Heve, north of the Haven.

All the Breton departments experienced new records, and it was the Vendée department, particularly on the islands of Yeu (35.9°C) and Noirmoutier (39.7°C), which recorded the highest. more, with nine all-time records.

Further inland, records have been set in Limoges (38.2°C) or Lusignan (40.3°C), in the neighboring department of Vienne.

“Clearly the day was in line with forecasts, it was unfortunately something expected,” Matthieu Sorel, climatologist at Météo-France, told AFP.

But even more than the number of records broken, “what is significant is the amplitude” of the gaps between the old and some of the new records, as heat waves multiply and intensify under the effects of global warming. climatic.

“Plus four degrees in Brest, it’s colossal,” notes the specialist, while the mercury soared at the tip of Brittany, between the old record of 35.1°C in August 2003 and the 39 .3°C reached on Monday.

Other examples in Loire-Atlantique, where Herbignac jumped by almost three degrees (42.3°C against 39.4°C on August 9, 2003) and Nantes by more than a degree and a half (42°C against 40, 3°C on July 12, 1949).