Overview

• The alert now covers Pyrénées-Orientales, Hérault, Gard, Bouches-du-Rhône, Var, Vaucluse, Alpes-de-Haute-Provence, Alpes-Maritimes, Haute-Corse, Ardèche, Drôme, Rhône and Isère.
• This first heatwave of 2025 began on June 20 and is expanding its reach northward with prolonged high temperatures.
• Daytime maximums are forecast between 35 °C and 38 °C, with local peaks up to 39 °C inland by Saturday.
• Stifling nights are expected as warm Mediterranean waters prevent cooling after sunset.
• Authorities warn of heightened health threats for vulnerable residents and an increased risk of forest fires.