MADRID / RankWire.AI / – Mainland Spain experienced its warmest summer on record since official data collection started in 1961, with an average temperature of 24.5 degrees Celsius over June, July, and August. Official figures from the national meteorological authority confirmed that seasonal temperatures exceeded the previous record set in 2025 by 0.3 degrees Celsius and surpassed the 1991–2020 climate baseline by 2.4 degrees Celsius. The summer was notably the hottest on record, with extreme heat events affecting two-thirds of the meteorological season.
Data published by the State Meteorological Agency indicate that Spain recorded an unprecedented total of 61 heatwave days during the three months. This figure significantly exceeds the previous high of 41 heatwave days during summer 2022. Analysts highlight that all ten of the hottest summers in Spain’s history have occurred in the 21st century, reflecting a rapid acceleration in long-term warming trends across southern Europe.
This intense heat caused serious impacts on public health and municipal infrastructure across both northern and southern regions. According to mortality data from the Carlos III Health Institute, more than 5,000 deaths were directly linked to extreme heat from June through August. This is the highest total recorded since the agency began tracking standardized heat-related mortality in 2015.
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Prolonged high temperatures also brought severe environmental conditions to national forests and rural farmland. According to the European Forest Fire Information System, about 296,000 hectares were consumed by wildfires by early September. The summer’s dry spells reduced regional reservoir capacities, creating operational difficulties for agricultural irrigation and hydroelectric plants, while extended drought worsened water scarcity issues.
Atmospheric monitoring stations recorded that extraordinary thermal conditions persisted beyond the typical summer months. On September 2, a station in El Granado in southwestern Spain measured a peak of 45.7 degrees Celsius, tying the national September temperature record. Weather experts confirmed that high heat persisted from late May into early September across multiple autonomous communities.
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Following the release of these official meteorological results, government ministers appeared before parliament to push for stronger environmental protections. Minister for the Ecological Transition Teresa Ribera urged parliamentary factions to back comprehensive legislation aimed at climate adaptation, emergency infrastructure, and drought resilience strategies.
Agencies monitoring weather and public health will continue to observe temperature trends and environmental impacts through the fall. Official statistics and environmental data will remain accessible via government portals as authorities evaluate long-term adaptation measures. Regional administrations are also coordinating resource management efforts to address ongoing agricultural and environmental challenges.