After a few days that were a bit more bearable, the heat could rise again sharply in Paris and Île-de-France. Forecasts point to a possible fifth heat wave of the summer, with temperatures likely to reach 34 to 35°C in the region during the week of August 10, 2026.
This new heat spike is tied to a strengthening high-pressure system over Europe, funneling very hot air up from the Iberian Peninsula and North Africa. Thermometers are expected to rise over the weekend, with a peak possible between the start and middle of next week. In southern France, daytime highs could top 35 to 38°C, while the Paris basin would see temperatures well above seasonal norms.
In Paris and the Île-de-France departments, daytime highs could hover between 33 and 35°C. The nights are also likely to stay warm if the spell continues. That said, it is still too early to officially declare a heatwave. The upcoming bulletins from Météo-France will help refine the intensity, duration, and extent of this episode.
During heatwaves, a few simple precautions remain essential: drink water regularly, keep the shutters closed during the day, ventilate your home at night, limit physical exertion to the hottest hours, and check in on elderly, isolated, or vulnerable people. If you feel unwell or notice unusual symptoms, contact emergency services.
To Beat the Heat, a number of swimming and water-sport spots are open in Paris and the Île-de-France region. In the capital, purpose-built areas such as the Bras Marie, the Grenelle and Bercy provide safe, supervised ways to enjoy the Seine. The leisure islets of Cergy-Pontoise, Vaires-Torcy, Jablines-Annet and Saint-Quentin-en-Yvelines, along with the Créteil leisure base, are among the most popular destinations. Municipal pools, shaded parks, fountains and misting stations offer additional options to weather the heat.
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