Key Points

• On July 10, the Aisne and Oise departments were placed under an orange alert by Météo France, followed on July 11 by the Nord, Pas-de-Calais, and Somme departments. The orange alert remained in effect for three days across the entire region and for four days in the Aisne and Oise departments. During this heatwave, maximum temperatures in the Hauts-de-France region ranged from 30 to 35°C.
• A regional analysis of healthcare utilization (emergency room visits and SOS Médecins calls) shows a moderate increase in the iCanicule composite health indicator starting on July 8 (yellow alert), which remained stable throughout the heatwave. This increase was slightly higher in the Aisne and Oise departments.