Météo France triggers heat wave vigilance

While a hot air mass is progressing on the large west, the heat will settle on a part of France. On the other hand, “on the Ille-et-Vilaine and the west of the Pays de la Loire, we are witnessing A limited heat peak on Monday day[11 août 2025]”Says Météo France.

For this reason, the department of Ille-et-Vilaine is placed in Heat yellow vigilance, This Monday, August 11, From 12 p.m. to midnight. According to the 6 -hour weather report, the situation should persist until Tuesday morning.

For their part, Morbihan, Finistère and Côtes-d’Armor are placed in Yellow vigilance Storms.

Heat in the land and on the coast

Thus, the forecasts indicate 29 ° C in Rennes in the morning and until 34 ° C in the afternoon. In the evening, the drop in mercury will be low with 29 ° C. It will be necessary to wait until night to find mild temperatures with 20 ° C.

In Vitré and Fougères, the situation will be similar with 28 ° C in the morning and 33 ° C in the afternoon. In the evening, it will be 28 ° C and at night 21 ° C.

It will not make much cooler by the sea. Despite a weak rain in the morning in Saint-Malo, the mercury will gradually climb up to 28 ° C in the morning, to reach 30 ° C in the afternoon. The sweetness will be back in the evening, with 24 ° C and 21 ° C at night. Also note, gusts from 40 to 50 km/h Throughout the day.

Recall of instructions

During hot weather, the prefecture of Ille-et-Vilaine recalls

  • regularly drink water;
  • wet your body several times a day;
  • Close shutters and windows during the day and ventilate overnight;
  • Pay attention to fragile and/or isolated people.

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