Weather Book

After the heat peak that concerns a large part of the country at the beginning of the week, the first real cool blow of the meteorological autumn is in sight for the weekend. A descent of polar air will occur over our country. Large temperature variations are a usual phenomenon in September, but, after a permanently hot summer, it may surprise to find temperature levels that we had not experienced since last spring. Check the weather in your city https://weatherjar.com/ Temperatures drop at the end of the week: up to 15 degrees less After the monthly heat records broken this Monday in the south-west with locally up to 40 ° C in the shade, the temperatures will eventually drop significantly in the second part of the week. The weekend will be marked by the coolness and we will have lost in some regions up to 15 ° C in the space of a few days. Credit: The Weather Channel Setting up of a northerly flow causing temperatures to drop from Thursday From Monday to Wednesday, France is under the influence of a vast low pressure system that extends from Portugal to the Bay of Biscay. The general flow is oriented to the southern sector and brings up very hot air from North Africa. Monday was the hottest day but the temperatures, although slightly decreasing, will remain significantly above the normal season until Wednesday. Note that a peak of strong heat had occurred at the same time only 2 years ago with 37.8 ° C on September 14, 2020 in Dax. From Thursday, an anticyclone will swell again on the British Isles while a depression will form between Scandinavia and Central Europe. Between these two systems, a northerly flow will take place over France and cause temperatures to drop significantly. It will be a polar air descent. The decline will begin on Thursday on the northern half before becoming widespread on Friday throughout the country. The next weekend will be cool with temperatures that will no longer exceed 15 to 19 ° C in the afternoon on a wide northern half and from 20 to 27 ° C on the southern part of the country. We will then be 3 to 4 ° C below the seasonal averages. The feeling will be very fresh exposed to the north-east wind. In the Mediterranean, mistral and tramontane will blow hard, as will the west wind on Corsica.