Overview
- Public Health France said the week of June 22–28 saw about 8,973 electronically certified deaths, roughly 2,025 more than the previous week, a rise officials treat as excess mortality linked to the heatwave.
- Belgian and Dutch mortality estimates add about 1,222 and 480 provisional excess deaths respectively, bringing the three‑country total to roughly 3,700 while authorities caution the numbers understate the full toll.
- Hospitals and mortuaries were overwhelmed during the peak week as emergency departments treated heart attacks, dehydration and kidney failure and funeral services struggled to store bodies.
- Climate groups including World Weather Attribution say the late‑June event was far more likely and more intense because of human‑caused warming while rapid modelling studies that estimate much larger continental death tolls have been disputed by other researchers.
- The heatwave also fuelled major wildfires that have burned tens of thousands of hectares and officials warn El Niño and seasonal trends raise the risk of further extreme heat, exposing gaps in cooling, health care and infrastructure for vulnerable people.