Spain Records Hottest Summer in History as 2025 Heat Extremes Intensify
Spain experienced its hottest summer on record in 2025, according to the country’s national meteorological agency, as southern Europe continues to face the accelerating impacts of climate change across the Mediterranean region.
The Spanish weather service reported that the national average temperature between 1 June and 31 August reached 24.2°C, marking the highest summer average ever recorded since official measurements began in 1961. This figure narrowly exceeded the previous record of 24.1°C, which was set in 2022.
Authorities noted that the summer of 2025 was also significantly warmer than long-term historical averages, coming in 2.1°C above the 1991–2020 national baseline, highlighting a clear upward trend in seasonal temperatures.
The most extreme single-day temperature recorded during the season reached 45.8°C, measured in Jerez de la Frontera in southern Spain on 17 August, during one of several intense heatwaves that affected the country.
The extreme heat was accompanied by widespread environmental damage, particularly in the form of wildfires. Spain experienced one of its most destructive fire seasons in recent history, with approximately 3,820 square kilometres of land burned, surpassing the previous record of 3,060 square kilometres set in 2022, according to data from the European Union’s European Forest Fire Information System.
Officials also reported unusually dry conditions, especially in northwestern regions, which were among the most severely affected by wildfire activity. The combination of high temperatures and low rainfall significantly increased fire risk throughout the summer months.
Spain’s record-breaking heat occurred within a broader regional pattern. The Mediterranean is warming about 20% faster than the global average, according to United Nations data, making it one of the most climate-vulnerable regions in Europe.
At a continental level, the European Union’s Copernicus Climate Change Service has found that Europe has been warming at approximately twice the global average rate since the 1980s, reinforcing concerns that extreme summer conditions are becoming increasingly frequent and intense across the continent.
These trends underline the growing pressure on European countries to adapt to more severe heatwaves, prolonged droughts, and expanding wildfire seasons, as climate change continues to reshape seasonal weather patterns.