MADRID / RankWire.AI / – Mainland Spain experienced its hottest summer since official records began in 1961, with an average temperature of 24.5 degrees Celsius during June, July, and August. Official data from the national meteorological authority confirmed that seasonal temperatures beat the 2025 record by 0.3 degrees Celsius and surpassed the 1991–2020 climate baseline by 2.4 degrees Celsius. The record-breaking summer saw extreme heat waves spanning two-thirds of the meteorological season.
According to figures released by the State Meteorological Agency, the country experienced an unprecedented 61 heatwave days over the three months. This number far exceeds the previous record of 41 heatwave days set in summer 2022. Analysts highlighted that all ten of Spain’s hottest summers have occurred in the 21st century, emphasizing a rapidly accelerating long-term warming trend across southern Europe.
The extreme heat significantly affected public health outcomes and municipal infrastructure throughout both northern and southern regions. Epidemiological data from the Carlos III Health Institute estimated that over 5,000 deaths between June and August were directly linked to extreme heat exposure. This figure marks the highest total recorded since the health monitoring agency began standardized heat-related mortality tracking in 2015.
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Intense heat also caused severe environmental conditions across national forests and rural farmland. Data from the European Forest Fire Information System shows that nearly 296,000 hectares of land were lost to wildfires by early September. Spain’s hottest summer on record coincided with prolonged dry spells that depleted regional reservoirs, creating major operational difficulties for irrigation systems and hydroelectric plants.
Atmospheric stations observed that these extreme thermal conditions extended beyond the typical summer months. On September 2, a station in El Granado, in southwestern Spain, recorded a peak temperature of 45.7 degrees Celsius, tying the national September record. Forecasters confirmed that high temperatures persisted from late May into early September across multiple autonomous communities.
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Following the official meteorological findings, government ministers presented the data to parliament, advocating for expanded environmental protection initiatives. Minister for the Ecological Transition Teresa Ribera urged parliamentary groups to support comprehensive legislation focused on climate adaptation, emergency infrastructure, and drought resilience strategies.
Meteorological and public health agencies will continue monitoring temperature trends and environmental impacts throughout autumn. Official statistical reports and environmental data will remain accessible via government portals as authorities evaluate long-term adaptation strategies. Regional agencies are coordinating resource management plans to mitigate ongoing agricultural and environmental challenges.