Spain Records Hottest Summer on Record in 2025 Amidst Escalating Climate Crisis

Spain experienced its hottest summer on record in 2025, with average temperatures reaching 24.2°C (75.6°F) between June and August, surpassing the previous record of 24.1°C set in 2022. This figure is 2.1°C above the 1991–2020 average, according to the Spanish State Meteorological Agency (AEMET).

The summer was marked by a particularly severe 16-day heatwave in August, during which temperatures exceeded 45°C (113°F) in southern regions. The highest single-day temperature of 45.8°C (114.4°F) was recorded in Jerez de la Frontera on August 17.

These extreme conditions contributed to Spain's worst wildfire season in three decades, with over 382,000 hectares (944,000 acres) burned. The northwestern region, particularly Galicia, was severely affected, experiencing temperatures 3°C above average.

The intense heat also had significant health impacts. The Carlos III Health Institute estimates that more than 1,100 deaths were attributable to the heat, mostly among individuals older than 65.

AEMET attributes this trend to climate change and warns that such extreme temperatures could become more common by mid-century. Nine of the ten hottest summers in Spain have occurred in the 21st century, indicating a clear warming trend.

In response to the escalating climate crisis, the Spanish government has proposed a national pact to address climate change. Measures include the creation of a State Agency for Civil Protection and Emergencies, adaptation strategies for heatwaves, and allocation of funds for the reconstruction of affected areas.

The summer of 2025 is part of a broader trend of increasing temperatures in Spain. Since 1961, the average temperature in Spain has risen by 1.69°C, leading to more frequent and intense heatwaves.

The escalating impact of climate change on Spain's summers underscores the urgent need for comprehensive climate action. The record-breaking temperatures, resulting wildfires, and health implications highlight the broader context of climate change's impact on Spain.

The Spanish government's proposed measures to address climate change and mitigate future heatwaves and wildfires are a step in the right direction. However, the challenges faced in implementation remain significant.

The urgency of addressing climate change cannot be overstated. Both national and global action are needed to prevent future climate-related disasters.