After a last day of hot weather, the sky will cover itself with clouds which will persist over the week, with a significant drop in temperatures except for 4 departments.
Final day of high heat before a marked drop in mercury. Monday, August 18, temperatures will be around 36 ° C in certain areas of France and 4 departments (Aude, Gard, Hérault, Pyrénées-Orientales) remain in a heat wave, indicates the weather chain*. Time will then deteriorate with the arrival of thunderstorms by the Atlantic.
The sun will dominate widely in the morning, in an already summer atmosphere. Only the Atlantic facade will appear a more veiled sky, heralding a change of time with a few thunderclap in Brittany. The Aquitaine basin will wake up under the greyness which will dissipate before the end of the morning.
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At daybreak, the temperatures will range from 13 ° C to the Ardennes at 26 ° C near the Mediterranean, with already more than 20 ° C in Garonne Valley, translating the persistence of the nightly night. The sky will then become more threatening along the Atlantic facade. Everywhere else, the good sunny weather will persist despite a sky that will sail more and more over the hours.
Temperatures will reach 20 to 25 ° C near the English Channel, 25 to 30 ° C from the north of the Seine to the Loire, and 30 to 35 ° C elsewhere, with peaks close to 37 ° C in Aquitaine and Midi-Pyrénées. In the evening, thunderstorms will invite themselves along the Atlantic facade. The sky will also cover himself with clouds near the Mediterranean, while the rest of the country will keep calm, dry and quite warm.
The rest of the week under the clouds
Tuesday and Wednesday, the heat wave will end in a heavy and unstable atmosphere. Sometimes violent thunderstorms will break out on the south and east of the country, with risk of hail and heavy rains, while the north of the Seine will remain more away. Subsequently, an unstable and cooler weather will settle down, the temperatures passing under seasonal normal.
*The weather channel belongs to the Figaro group.
