France releases first estimate of heatwave mortality, as at-home deaths rise

France’s public health agency has released its first estimate of mortality linked to the June heatwave, saying the country recorded about 1,000 excess deaths between June 24 and June 27.

The count is provisional and based on electronic death certificates received so far, not an exhaustive final tally. That means the number could rise as more certificates are processed.

The estimate was first reported publicly on June 28 and was followed by additional coverage on June 29, as officials and doctors began to assess the wider toll of the heatwave across France.

A first official count

Santé Publique France’s estimate gives the clearest official picture yet of the human cost of the heatwave. It covers the period when France endured several days of exceptional heat and follows a stretch in which daily deaths climbed above typical spring levels.

Le Monde reported that more than 1,200 deaths were recorded on June 24, and more than 1,400 on June 25 and June 26, compared with roughly 900 to 1,000 a day in April and May. The agency’s provisional estimate was released after those daily counts had already signaled a sharp increase in mortality.

The reports say the estimate is not exhaustive because it reflects only the electronic certificates that had arrived when the agency compiled the figure. Heat-related deaths can also lag behind the hottest days, which is why later updates may add to the total.

AP reported that the agency said the estimate was released on Sunday, June 28. Le Monde’s main story was published on Monday, June 29 at 10:05 UTC.

Deaths rose at home

One of the clearest signals in the reporting was a rise in deaths at home. Le Monde said at-home deaths increased by 40% during the heatwave period, with the sharpest rise in Île-de-France.

Other regions named in the reporting included Brittany, Centre-Val de Loire, Normandy, Nouvelle-Aquitaine and Pays de la Loire. The pattern suggested that the burden was not limited to one part of the country, even if the capital region stood out most sharply.

Front-line doctors and emergency services described a mix of direct heat illness and broader strain on vulnerable patients. Hyperthermia and dehydration were among the conditions highlighted in the coverage.

The reports also said hospitals, emergency services and funeral services were under pressure as temperatures stayed elevated. Funeral services in Paris and Centre-Val de Loire were among the actors named as dealing with the consequences of more at-home deaths.

Older people bore most of the toll

Both Le Monde and AP said people age 65 and older accounted for about 85% of the deaths in the provisional estimate. That concentration fits the broader pattern seen in earlier heatwaves, when older adults are usually the most exposed.

The reports point to the vulnerability of isolated older people, especially those living at home without easy access to cooling or regular support. That is likely to keep attention on France’s ability to reach people who may not be in the hospital system but are still at high risk during extreme heat.

The June episode is also renewing scrutiny of the country’s heat-preparedness system, including whether public warnings and local support were enough to protect the most vulnerable residents during the hottest stretch.

Pressure on the health system

Before the mortality estimate was published, French hospitals were already described as nearing a tipping point after several days of heat. Emergency services were dealing with rising demand while the heatwave persisted.

The comparison with the deadly 2003 French heatwave remains a major reference point. France built a national heatwave response system after that disaster, and officials say the health system is better prepared now than it was then.

Even so, the current episode shows how quickly extreme heat can strain hospitals, mortuaries and funeral homes, especially when deaths rise in private homes rather than in institutions.

What happens next

The most important next question is whether the excess-death estimate rises as more certificates arrive. Santé Publique France’s count is provisional, and the final toll may be higher.

Further updates may also show whether Île-de-France and the western and central regions remain the hardest hit once the agency publishes more detail. The reporting also leaves open whether the heatwave caused additional indirect deaths beyond the first window counted so far.

For now, the estimate gives an early measure of the toll from a heatwave that tested emergency care, mortuary services and public-health planning at the start of summer.