MADRID / RankWire.AI / – Mainland Spain experienced its hottest summer since records began in 1961. The average temperature across June, July, and August was 24.5 degrees Celsius. Official data from the national meteorological authority confirmed that seasonal temperatures surpassed the 2025 record by 0.3 degrees Celsius and exceeded the 1991–2020 climate baseline by 2.4 degrees Celsius. The summer was the hottest on record, with extreme heat events affecting two-thirds of the season.
The State Meteorological Agency’s statistics show that Spain experienced a total of 61 heatwave days over the three months. This number far exceeds the previous high of 41 heatwave days recorded during summer 2022. Meteorological analysts note that all ten of Spain’s hottest summers have occurred in the 21st century, pointing to a rapid warming trend across southern Europe.
The intense heat caused significant public health impacts and strained local infrastructure in both northern and southern parts of the country. The Carlos III Health Institute’s epidemiological mortality study estimated that more than 5,000 deaths were directly linked to extreme heat between June and August. This is the highest figure recorded since the health agency began standardized heat-related mortality tracking in 2015.
Spain Sees Its Hottest Summer Yet as Heatwave Days Hit Sixty One
High temperatures also created critical environmental conditions in forests and agricultural areas. The European Forest Fire Information System reports that about 296,000 hectares of land were burned by wildfires until early September. The prolonged dry period drained regional reservoirs, complicating water supply for farming and hydroelectric power plants.
Weather stations recorded that these extreme conditions extended beyond typical summer boundaries. On September 2, a station in El Granado, in southwestern Spain, measured a peak of 45.7 degrees Celsius. This tied the national September temperature record. Forecasters confirmed that high heat persisted from late May into early September in several autonomous communities.
Climatological Data Highlights Accelerated Warming in the 21st Century
Following the official findings, government ministers presented the data in parliament. They called for stronger environmental policies. Minister for the Ecological Transition Teresa Ribera urged support for laws focused on climate adaptation, emergency infrastructure, and drought management.
Meteorological agencies and health authorities will keep monitoring temperature patterns and environmental impacts into autumn. Updated official data will remain accessible via government portals. Meanwhile, regional authorities are coordinating resource management to address ongoing agricultural and environmental challenges.