Extreme heatwaves across Europe have led to a significant spike in excess mortality, particularly among older populations, according to data from the World Health Organization (WHO). As of late June 2026, the continent has recorded 1,300 excess deaths linked to persistent high temperatures that have strained healthcare systems and infrastructure.
Why are heat-related death tolls rising in Europe?

The World Health Organization reports that Europe is warming at twice the global average, making it the fastest-warming continent on Earth. Tedros Adhanom Ghebreyesus noted on X that the region’s infrastructure—including homes, schools, and workplaces—was not designed to withstand current temperature extremes. Health agencies, including those in France, have identified older adults as the most vulnerable demographic. In France, officials reported 1,000 excess deaths, with local media outlets noting that funeral services in the Paris region have struggled to manage the increased volume of fatalities.
How is the current heatwave affecting regional infrastructure?
The heatwave, which began on June 20, has triggered widespread disruption across Southern and Eastern Europe. In Italy, authorities placed 22 cities under red heat warnings, spanning from Bolzano to Palermo. Meteorologists from the Italian Air Force report that temperatures are consistently tracking eight to 10 degrees Celsius above average. Beyond human health, the conditions have severely impacted power generation and infrastructure. While some regions in Western Europe experienced temporary relief, the Italian Meteorological Society warns that a secondary surge of heat is expected to move across France, Spain, Germany, Italy, Switzerland, and parts of Britain beginning July 5 or 6.
What is the impact on wildfire risk?
Extreme heat has created hazardous conditions for forest fires, particularly in the Balkans and Italy. In Croatia, the national weather service issued red alerts for major urban centers, including Zagreb, Split, and Dubrovnik. Firefighting efforts intensified on the Adriatic island of Vis, where crews utilized four aircraft to contain a blaze covering pine forests 55km southwest of Split. Similarly, in Albania, authorities worked to contain fires near the village of Klos. Luca Mercalli, president of the Italian Meteorological Society, notes that while localized rainstorms occasionally mitigate fire risks, the amount of rainfall varies from place to place.
What role does climate change play in these events?
Scientists state that the intensity of this heatwave would have been virtually impossible without the influence of human-caused climate change. Research indicates that the extreme night-time temperatures observed during this period are 100 times more likely to occur today than they were two decades ago. As the continent prepares for further surges in temperature, public health authorities continue to monitor for additional spikes in heat-related illnesses and fatalities.