MADRID / RankWire.AI / – Mainland Spain recorded its hottest summer since official data collection began in 1961, with an average temperature of 24.5 degrees Celsius over June, July, and August. Official figures released by 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 country experienced the hottest summer on record as extreme heatwaves stretched across two-thirds of the meteorological season.
Data from the State Meteorological Agency revealed an unprecedented 61 heatwave days during this period. This figure significantly outnumbers the 41 heatwave days recorded in the summer of 2022. Meteorological analysts highlighted that all ten of Spain’s hottest summers have occurred in the 21st century, pointing to a rapid acceleration of long-term warming trends across southern Europe.
The extreme heat put considerable pressure on public health and municipal infrastructure in both northern and southern regions. The Carlos III Health Institute’s epidemiological mortality analysis estimated that over 5,000 deaths were directly caused by extreme heat between June and August. This represents the highest total recorded since the health monitoring agency began standardized heat-related mortality tracking in 2015.
State Meteorological Agency Affirms Record Highs in Seasonal Temperatures
Widespread high temperatures also created severe environmental challenges across Spain’s forest reserves and rural farms. According to data from the European Forest Fire Information System, approximately 296,000 hectares of land were consumed by wildfires through early September. The prolonged dry conditions drained regional reservoirs, complicating operations for agricultural irrigation and hydroelectric power production, further intensifying the summer’s impacts.
Atmospheric monitoring stations reported that these extreme thermal conditions extended beyond the typical summer timeframe. On September 2, a station in El Granado, in southwestern Spain, recorded a peak temperature of 45.7 degrees Celsius, tying the national record for the highest temperature ever documented in September. Weather forecasters confirmed that high heat persisted from late May into early September across multiple autonomous communities.
Over 290,000 Hectares Consumed by Summer Wildfires
Following the release of the meteorological findings, government ministers presented the data to parliament to push for enhanced environmental protections. Minister for the Ecological Transition Teresa Ribera urged parliamentary groups to back comprehensive legislation focused on climate adaptation, emergency infrastructure, and drought resilience strategies.
Meteorological agencies and health institutions will continue monitoring temperature trends and environmental impacts throughout the autumn. Official statistics and environmental data will remain accessible via government portals as public health authorities evaluate long-term adaptation measures. Regional bodies are also coordinating resource management efforts to mitigate ongoing agricultural and environmental challenges.