• France recorded 5,764 excess deaths during a severe heatwave from June 17 to July 2, 2023.
• This toll represents a 36% increase over expected mortality rates, marking the highest since the 2003 heatwave.
• Older adults, particularly those above 75, accounted for over two-thirds of these excess deaths.
• The Paris region suffered the worst, with nearly 2,000 additional fatalities.
• Authorities expect the final figures to rise as more data becomes available later this year.

France's public health agency, Santé Publique France, announced that the catastrophic heatwave that took place from June 17 to July 2 resulted in 5,764 excess deaths, indicating a drastic increase in mortality rates amid soaring temperatures. Over this period, the nation reported a total of 21,674 deaths from all causes, compared to an expected number of 15,910 deaths, based on historical averages, marking an alarming 36.2% increase in excess mortality, the highest since the infamous 2003 heatwave, which led to around 15,000 deaths. These findings illustrate the growing impacts of climate change-related extreme weather events, especially as 98.5% of the population was affected during this span, according to Le Monde, India Times, and Los Angeles Times.

According to reports, the peak of the heatwave occurred between June 25 and June 27, when temperatures rose to extreme levels exceeding 40 degrees Celsius. The Paris region struggled the most, accounting for nearly 2,000 excess deaths, around 80% more than usual for that period. Funeral services were overwhelmed, with mortuaries reaching capacity and having to turn away bodies amidst the crisis. Additionally, hospitals were inundated with patients suffering from heat-related conditions, leading to approximately half of the excess deaths occurring in medical facilities, as noted by Le Monde, India Times, and Los Angeles Times.

The majority of individuals who succumbed during this period were older adults, predominantly those aged 75 and over, who comprised more than two-thirds of the total excess deaths. The public health agency emphasized that the statistics reflect overall mortality rather than solely heat-related fatalities. Many deaths attributed to underlying health issues, exacerbated by extreme heat, often go unrecorded, presenting a broader public health concern, according to Le Monde, India Times, and Los Angeles Times.