From Saturday August 9 at 5:00 p.m. to Thursday August 14 at 5:00 p.m.
Situation
A sustainable heat wave has settled on France, with temperatures often greater than 36 ° C from the southwest to the center-east, and a number of departments passing by increasing heat wave. The heat peak is expected between August 11 and 13, with increased tropical nights. This heat wave recalls that, later, from August 2023, but seems to remain far behind that of August 2003 in duration.
This high heat tray should not, however, beat an absolute temperature record, except very locally in the Garonne valley.
Overall, this very hot episode will last until August 15, or even more in the regions of the center-east, which will remain to be determined.
From Monday, these strong heat heat will go north of the Loire, to Ile-de-France and then the Northeast. Almost 70% of the country could then go on orange level heat wave alert.
Observation
This Saturday afternoon, The 40 ° C bar in the south of the country, the first time since July 2 with:
40.6 ° C in Saint-Côme-d’Olet (12)
40.3 ° C in Laragne Montgélin (05)
40 ° C in Moulès-et-Baucels (34)
39.8 ° C in Die (26)
39.1 ° C in Montélimar (26)
39 ° C in Lyon (69)
38.7 ° C in Ambérieu (01)
38.4 ° C in Saint-Etienne (42)
38.3 ° C in Brive-la-Gaillarde (19)
37.9 ° C in Grenoble (38) and Toulouse (31)
37.6 ° C in Clermont-Ferrand (63)
37 ° C in Annecy (74)
36.6 ° C in Bordeaux (33) and Colmar (68)
36.1 ° C in Mâcon (71) and in Guéret (23)
36 ° C in Dijon (21)
35.6 ° C in Chambéry (73)
Consult the weather in your city
Evolution
A very hot air bubble is permanently installed in the south of the Loire and is maintained at least until the middle of next week. In the north, the heat remains more moderate, with nights still pleasant, but in the south, between the Garonne and the Rhône to the Val de Saône, the temperatures are particularly high. This weekend and at the start of the week, the heat wave focuses mainly on the center-east and the southwest.
In the departments on orange alert, the scorching thresholds have day and night for at least three consecutive days. On yellow alert, the days will be very hot, but the nights more breathable, limiting the impact on health. This intense episode, but without expected record, could last until August 15, even a little more in the center-east.
This night from Saturday to Sunday is hotwith often 20 to 25 ° C of minimum in Auvergne-Rhône-Alpes and around 20 ° C in the Southwest
Sunday
Third day of heat wave in the southwest and center-east. The values remain identical, with always 35 to 38 ° C in the afternoon on the same regions. The southwest could benefit from an attenuation of heat due to the possible lifting of ocean air, which will be specified.
Subsequent evolution: next week
The very strong heat and the heat wave will then go back to northeast of France and Ile-de-France on Monday and Tuesday, which would be the two warmest days on a national scale (with a national thermal indicator estimated at 28 ° C, as at June 30 and July 1).
The heat leaving the heat wave should start to be implemented from the West on Wednesday, but a wide east half of the country will keep these very strong heat until Thursday and Friday.