MADRID / RankWire.AI / – Mainland Spain recorded its hottest summer since official climate data collection began in 1961, with an average temperature of 24.5 degrees Celsius across June, July, and August. Official data released by the national meteorological authority confirmed that seasonal temperatures surpassed the previous record established in 2025 by 0.3 degrees Celsius and exceeded the 1991–2020 climate baseline by 2.4 degrees Celsius. Spain faced its warmest summer on record as extreme heat waves affected two-thirds of the summer months.
The State Meteorological Agency’s published statistics reveal that the country experienced an unprecedented 61 heatwave days over the three-month period. This total significantly exceeds the previous record of 41 heatwave days during the summer of 2022. Meteorological experts emphasized that all ten of Spain’s hottest summers have occurred in the 21st century, highlighting an accelerating pattern of long-term warming across southern Europe.
The severe heat put considerable pressure on public health and infrastructure in both northern and southern regions. Epidemiological mortality data from the Carlos III Health Institute estimate that over 5,000 deaths between June and August were directly linked to extreme heat. This is the highest total since the health agency began standardized heat-related mortality tracking in 2015.
Spain Records Its Warmest Summer on Record as Heatwave Incidents Hit Sixty-One Days
Prolonged dry spells and sustained high temperatures also worsened environmental conditions across national forests and rural farming areas. Data from the European Forest Fire Information System show that about 296,000 hectares were burned by wildfires through early September. The intense summer heat, compounded by depleted regional reservoirs, created operational difficulties for agricultural irrigation and hydroelectric power generation.
Atmospheric monitoring stations reported that extreme thermal conditions extended beyond typical summer months. On September 2, a station in El Granado, in the southwest, measured a peak of 45.7 degrees Celsius, tying the national September temperature record. Forecasters confirmed that intense heat persisted from late May into early September across multiple autonomous communities.
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Following the release of the official meteorological data, government ministers presented the findings to parliament, urging for broader environmental protections. Minister for the Ecological Transition Teresa Ribera called on parliamentary groups to endorse comprehensive legislative strategies for climate adaptation, emergency infrastructure, and drought resilience.
Meteorological agencies and health institutions will continue monitoring temperature patterns and environmental impacts throughout the fall. Official reports and environmental data logs will remain available via government portals as authorities assess long-term adaptation measures. Regional agencies are also coordinating resource management plans to mitigate ongoing impacts on agriculture and ecosystems.