A more pronounced increase in reported deaths was observed in regions under a red alert, particularly among those who died at home

More than 1,200 deaths (all causes) were recorded on June 24, and more than 1,400 daily deaths on June 25 and June 26 (data for June 26 is not yet finalized). By way of comparison, there were around 900 to 1,000 deaths per day in April and May.
Thus, since June 24, approximately 1,000 additional deaths (unconsolidated figures) have been observed compared to the deaths recorded in previous months.

This increase has been more pronounced in regions under a red alert over the past few days, particularly in Île-de-France, Nouvelle-Aquitaine, Brittany, Centre-Val de Loire, Normandy, and Pays de la Loire.

The increases affect all age groups, underscoring that the effects of the heat wave can impact the entire population. Nevertheless, 85% of the deaths observed involve people aged 65 and older.

Deaths have increased in hospitals, nursing homes, and at home.
However, since June 24, a particularly sharp increase in deaths at home has been observed (around 40%), especially in Île-de-France. This observation serves as a reminder of the need for measures of solidarity toward people who are isolated or experiencing profound loneliness, including in highly urbanized areas.

Partial data that underestimates the total number of deaths 

In fact, this reactive surveillance of deaths is based on the submission of electronic death certificates. It is not exhaustive and typically captures about 60% of national mortality. The system’s coverage remains inconsistent across regions and, above all, depending on the type of place of death: it records 25% of deaths occurring at home, 45% of those in long-term care facilities (EHPADs), and nearly 80% in hospitals. The observed trends should therefore be interpreted with caution, as the data are underestimated, particularly in areas and for places of death that are least covered by the system, such as deaths at home. Mortality will consequently be higher than these initial figures suggest.

Heat waves affect all age groups, but they are particularly dangerous for vulnerable individuals, especially those over 75 years of age.