Official data show at least 1,028 heat-related deaths in Spain during June 2026, more than double the 407 recorded in June 2025. June 2026 ranked as Spain's second-hottest June on record with temperatures 3.2°C above average, while the first half of 2026 was the warmest six-month period since records began. The same sources state that the June 2026 European heatwave would have been virtually impossible without climate change.