Key Points

• According to Météo France, the heat wave, which triggered an orange alert, lasted from Sunday, August 10, 2025, to Saturday, August 16, 2025, affecting the entire Bourgogne-Franche-Comté region.

• A regional analysis of emergency care utilization indicates an increase in the iCanicule composite health indicator (covering hyperthermia, dehydration, and hyponatremia) over the 7-day period of the episode. This increase falls within expected fluctuations given the meteorological conditions and is observable across the region as a whole.

• Heat poses a health risk to the entire population. The observed health impacts underscore the importance of implementing preventive measures to mitigate the effects of heat.