Spain recorded more than 1,000 excess deaths in June 2024 attributable to a historic heatwave [1].
The surge in mortality highlights the increasing vulnerability of the population to extreme weather events. As temperatures reach record highs, the capacity of public health systems to protect elderly and high-risk citizens is under severe pressure.
Spanish health authorities and the national mortality surveillance system said the death toll for the month reached between 1,028 [2] and 1,029 [1]. This represents the highest number of heat-related deaths ever recorded for the month of June in the country's history [3]. For comparison, the number of deaths in June 2025 was 407 [4].
The extreme weather event was characterized by a five-day heatwave where temperatures in many regions exceeded 40 °C (104 °F) [1]. This period contributed to June 2024 becoming the second-hottest June ever recorded in Spain [1].
Scientists said the extreme heat across Europe was driven by climate change [1]. According to reports from France 24, experts said that such a heatwave would have been "virtually impossible" without the influence of climate change [5].
The mortality data reflects a broader trend of rising temperatures across the Mediterranean. Health officials continue to monitor the impact of these thermal anomalies on the general population throughout the first six months of 2024 [1].
“Spain recorded 1,029 excess deaths last month attributable to heat.”
The disparity between the 1,029 deaths in June 2024 and the 407 deaths in June 2025 underscores the volatility of current climate patterns. By linking these deaths directly to a specific five-day extreme heat event, health authorities are providing empirical evidence of how climate-driven temperature spikes translate into immediate public health crises.
