The orange heatwave vigilance is now fully in effect in Paris (75) and in the seven other departments of Île-de-France: Météo-France has raised the region to alert level at noon on Tuesday, July 7, 2026, and the alert remains in force on Wednesday, July 8. The Seine-et-Marne (77), the Yvelines (78), the Essonne (91), the Hauts-de-Seine (92), the Seine-Saint-Denis (93), the Val-de-Marne (94) and the Val-d'Oise (95) are thus treated the same as the capital.
In its bulletin published this Tuesday at 6:18 a.m., Météo-France describes this new heat wave as "severe and lasting," coming only a few days after the historic June heat surge. We were already talking about this 3rd heat wave that begins with up to 38°C expected in Paris: we are there, and the mercury shows no sign of dropping anytime soon. So we’ll have to get used to it.
The Paris region is far from the only area affected. Beginning Tuesday at noon, the orange alert extends to a large swath of the country: Burgundy, Centre-Val de Loire, Pays de la Loire, parts of Brittany, the Southwest and the Alps join the departments already under alert. On Monday afternoon, maximum temperatures were already hitting 36 to 40°C in the orange zones, with peaks of 41°C. Météo-France warns that an expansion to other departments is likely on the next round of vigilance maps.
This Tuesday afternoon, the maximum temperatures reach 34 to 36°C in Paris and the inner suburbs, as well as in Yvelines. Essonne climbs to between 35 and 37°C, while Seine-et-Marne records 34 to 38°C, with the highest readings in the southern part of the department. Val-d'Oise fares only marginally better at 32 to 35°C.
The telltale sign: by 5 a.m., Paris-Montsouris was already at 22°C, Lariboisière had risen to 25.5°C, while Longchamp stood at 15°C. A gap that starkly illustrates the urban heat island effect that makes Paris nights so uncomfortable.
Tuesday night into Wednesday looks set to be far from restful: overnight lows won’t dip below 19–21°C in Paris, while the inner ring suburbs will sit around 15–19°C. On Wednesday afternoon, the pattern repeats: highs will again reach 34–36°C in Paris and the inner ring, and 33–36°C in the outer ring. And Meteo-France is unequivocal: this heatwave will linger in the days to come.
The red heatwave alert isn’t based solely on the forecast daytime highs. Météo-France also factors in the duration of the event, the nighttime temperatures, and health risks: the threshold calls for hot temperatures both day and night for at least three consecutive days.
It is still too early to decide on a move to red alert in the Paris region, but the situation could change quickly. Météo-France's vigilance map is updated twice daily, at 6 a.m. and 4 p.m., and we are monitoring its evolution closely.
In the face of this new heat wave, health authorities are reminding the public of the essential precautions on the Health Ministry’s website: drink water regularly, avoid strenuous outdoor activity during the hottest hours, keep shutters closed during the day, ventilate at night, and check in on isolated people. These hot nights heighten the risk for vulnerable groups (the elderly, young children, pregnant women, the sick or isolated), especially if the spell lasts, as it did at the end of June.
Good news nonetheless: with the orange alert in effect, several measures are being rolled out across Paris and Île-de-France. Some Parisian parks will stay open all night, the Parc de Bagatelle and Parc Floral will be free, and a map helps you locate free water at the stations. The air‑conditioned museums and the cooling “islands” also remain valuable allies to get through these scorching days.
To get the day-by-day forecasts, we detail everything in our article on la météo de la semaine à Paris et en Île-de-France, and we share all our tips in our guide canicule à Paris avec les infos, recommandations et bons plans.
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Dates and Opening Time
From July 7, 2026 to July 8, 2026
Location
Paris
75 Paris
