Heatwave: How long will temperatures be at their highest?

After a historically hot month of September, the first days of October take the same direction. We will have to wait until Tuesday to see temperatures drop after this heat wave.

[Put to; day October 1, 2023 at 2:14 p.m.] More than 30 degrees over a large part of France, and up to 30 degrees. 35 degrees locally. This start of October is affected by by an "exceptional" heat wave according to Météo-France, while the peak of temperatures is expected for Monday. Thus, the mercury should record levels never before recorded for a month of October, after a month of September where heat records were set beaten.

Thus, temperature records for the tenth month of the year could fall this Sunday or Monday. Today, they are held by Ajaccio with 35 degrees and by Dax (on the continent) with 34.7 degrees. This Sunday it will be 21  26 degrees near the English Channel and the northern borders, 26 degrees near the English Channel and the northern borders, 31 degrees for the rest of the half. north to Rhône-Alpes, as well as to the edge of the Mediterranean, 28  32 degrees everywhere else and up to 32 degrees everywhere else. 32 à 34 degrees, or even 35 degrees in the South-West.

According to the latest bulletin from Méo-France, temperatures will be just as high, or even hotter in certain regions: "The maximums (will be) stationary in the South, rising in the North. They will reach 32  34 degrees in the Center and the South-West, locally 35 36 degrees in Béarn. Only the approaches to the Channel will be lower than 25 degrees. We will have to wait until Tuesday to see the heat drop, with the anticyclone weakening over France.

19 departments where it will be 30° or more:

Here are the departments in which the heat will be the most intense this weekend, according to forecasts from Météo-France:

Occitanie  : Aude, Ariège, Aveyron, Gard, Haute-Garonne, Hérault, Lozère, Pyrénées-Orientales.
Auvergne-Rhône-Alpes: Drôme
Provence-Alpes-Côte d'Azur : Alpes-de-Haute-Provence, Alpes-Maritimes, Bouches-du-Rhône, Hautes -Alps, Var.
New Aquitaine : Dordogne, Gironde, Lot-et-Garonne, Pyrénées-Atlantiques.
Corsica: Corse-du-Sud, Haute- Corsica.

On Sunday, the sun will dominate the entire country. Temperatures will still be high, with maximums between 24 and 30°C. There could be monthly heat records in the southwest of France and Ile-de-France. According to La Channelétéo, "this will be an undoubtedly exceptional meteorological context for this time of the year". It is important to note that these forecasts are likely to change depending on weather conditions.

September 2023, a historic month for its heat

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© The Weather Channel

The weather situation will be similar to that of that of mid-August and the first decade of September. However, temperatures will be slightly lower due to the advancement of the season and the transition to summer. autumn. The nights will also be cooler.

Summer 2023 was exceptionally hot, with record temperatures in several regions. The month of September, which is traditionally cooler, broke all records, with an "average temperature of 21.5 degrees Celsius" according to Météo-France. Climatologist Christine Berne explained: that this record average for a month of September is "at least 3.5°C above the normals of the previous three decades".

This extreme heat is a consequence of climate change, which leads to an increase in average temperatures at on a global scale. The exceptional heatwave experienced at the beginning of the month took its toll. in the balance, but the temperatures were mainly higher than seasonal norms throughout the month.