The heat returns. This year, the months of April and May were marked by fairly cool temperatures. “Like the month of April, our month of May could end with global temperatures quite close to the averages in France. Indeed, between the milder first decade, the colder current one, and the last which should see a rise in temperatures, the average should balance out, but does not reflect the current level.The cold anomaly is especially marked over the Mediterranean basin, up to the Maghreb.In question, the undulations of the jet stream which channel the polar air towards North Africa via France”, explain the experts of La Chaîne Météo.

Indeed, during the week of April 15, 2023, temperatures were on average between 2°C and 3°C below the seasonal average. “This configuration is linked to the presence of an anticyclone on the North Atlantic, itself blocked by a meander of the jet stream which plunges from Iceland towards North Africa. As a result, the winds drain “air of polar origin which crosses our country by plunging to the Maghreb”, can we read on the specialized site.

However, this should not last and temperatures are expected to rise again this week. In some territories, these should even go above the symbolic bar of 25°C*. Discover the list of territories concerned in our slideshow.

*According to Météo France forecasts for Friday May 19, 2023 at 3:30 p.m.