Spain recorded at least 1,028 heat-related deaths in June 2026, according to figures from the Carlos III Health Institute in Madrid. The figure is more than double the 407 deaths attributed to heat in June 2025, which was itself recorded as the hottest June since measurements began, according to Spain's national meteorological service, Aemet.
Second deadliest June since records began
As reported by El País, June 2026 was the second deadliest month for heat-related mortality since systematic recording began in 2015. Over the past eleven years, the average number of heat-related deaths in June has stood at 328. The previous peak was recorded in 2017, with approximately 1,000 fatalities.
Part of a broader European heatwave
The deaths occurred during an unprecedented heatwave that affected central and western Europe throughout the month of June.


