Key Points

• From June 29, 2025, to July 2, 2025, amid a heat wave, Météo-France issued a red alert for 5 departments and an orange alert for 1 department.

• A regional analysis of emergency care utilization indicates an increase in the iCanicule composite health indicator (covering hyperthermia, dehydration, and hyponatremia) during the heatwave and compared to the preceding three weeks.