Global warming: +4°C in France in 2100, but what to expect in the Southwest?

This projection of +4°C corresponds to a possible change in the climate in France if that of the entire planet increased by 3°C over the course of the century, because global warming is accentuated on the continents, particularly at the latitudes of temperate regions and at the poles.

The projections for 2100, unveiled this Thursday by "Le Figaro" , show the extent to which disparities exist depending on the region. The calculation is based on three criteria for each of the 100 cities classified: the increase in the overall annual temperature, the increase in the maximum summer temperature and the increase in the number of days above 35°C.

The South will warm up faster

The city most affected by global warming would be Aix-en-Provence, according to TRACC, with an annual temperature increase of 3.6°C and a 4.8°C rise in summer temperatures, which would reach an average of 32.6°C. The city in Bouches-du-Rhône would experience 28.1 more days at over 35°C.

On the contrary, Cherbourg-en-Cotentin would be the best-off municipality by the end of the century. The increase would be only 2.6°C (annual) and 3.1°C during the summer during the day.

Overall, the south of France is expected to warm up the fastest, particularly in the Tarn region. Albi (+4.9°C in summer) and Castres (+4.8°C in summer) will be the first to be affected.

And in the Southwest?

Six cities in Nouvelle-Aquitaine appear in the ranking. Angoulême and Poitiers are expected to be the cities in the Southwest most affected by global warming in 2100, with an annual temperature increase of 3.4°C and a summer temperature increase of 4.3°C (29.3°C on average for Angoulême and 28.3°C for Poitiers). The Charente city could experience 12.1 more days at 35°C.

With a 4.1°C increase in summer, Pau could record almost 14 more days above 35°C. And Bordeaux, 11.5 days with a summer average of 29.2°C, an additional 3.9°C.