Spain is bracing for another intense heatwave, with temperatures set to climb above 40°C in multiple regions this week. Saharan dust and lingering smoke from ongoing wildfires will add to the challenges facing residents and emergency services. After a brief respite over the weekend, forecasts indicate that the heat will intensify through midweek before possibly easing in some areas. The renewed heat follows an exceptionally hot summer: Spain’s mean temperature reached 24.5°C, around 0.3°C above the previous record set in 2025, making it the hottest summer in the national series that began in 1961.
The Cantabrian region, along with parts of the interior and south, is expected to see the sharpest temperature spikes. Daytime highs in Ourense, Zaragoza, Toledo, Ciudad Real, Jaén, Granada, Sevilla, Córdoba, Badajoz, and Cáceres are expected to reach or exceed 40°C. Nighttime relief will be limited, with tropical or even equatorial nights forecast in several provincial capitals. In Almería and Cádiz, minimum temperatures may not fall below 25°C, raising concerns about heat stress and public health. A study by researchers at Imperial College London and the London School of Hygiene & Tropical Medicine estimated that heat exposure caused 6,824 deaths in Spain between June and August 2026. The researchers estimated that human-caused climate change accounted for about 5,227 of those deaths, or 77%. These are modeled epidemiological estimates across 90 urban areas, not counts based on individually verified death certificates. The same assessment recorded 61 heatwave days during the summer.
The weather shift is driven by a cold-air trough retreating east and the return of a strong anticyclonic ridge over the peninsula. This pattern brings calm winds and a steady flow of hot, dry air from North Africa. Temperatures will soar, while humidity and discomfort are also expected to rise, especially in the southern half of the country. Saharan dust, or calima, will be particularly noticeable, reducing visibility and further degrading air quality in affected provinces. AEMET, Spain’s State Meteorological Agency, publishes hourly station observations and daily summaries, including maximum and minimum temperatures. Those station records provide the local measurements used to assess whether forecast thresholds were reached.
Rainfall is expected to remain scarce throughout the week, with only isolated showers possible along the Cantabrian coast and in mountainous areas of the north and east toward the weekend. A weak frontal system may cross the peninsula on Thursday, potentially bringing brief, scattered precipitation to some northern and eastern regions. These showers are unlikely to bring impressive relief from the prevailing heat and dryness.
Wildfire risk remains a critical concern. Although winds are forecast to ease on Sunday, creating better conditions for firefighting teams, dry vegetation and low humidity, combined with high temperatures, will keep the threat elevated. Local wind shifts, especially near complex terrain, could still complicate efforts to control active fires. From Monday, afternoon winds may pick up again because of daytime heating and approaching Atlantic systems, with gusts reaching 25 to 40 km/h in some areas. That could hinder efforts to contain blazes, as happened in recent incidents when unstable winds and dense smoke forced mass evacuations, including the large-scale fire near Burgohondo in Ávila. Reuters reported that a major fire near Burgohondo burned about 63,000 hectares from 22 July until its final hotspots were extinguished on 3 October, prompting the evacuation of more than 60,000 people. The episode showed how wildfire danger can persist beyond the peak summer months after prolonged heat and dry conditions.
Authorities are urging caution, particularly in regions where heat and airborne dust or smoke pose health risks. Residents are advised to monitor official updates and limit outdoor activity during peak heat, while taking precautions against poor air quality. Spain’s recent summers have brought increasingly frequent and severe heatwaves, often linked to persistent high-pressure systems drawing hot air from North Africa. Reuters has described the wider pattern of prolonged extreme heat as a cascading risk, with consequences for public health and ecosystems, as well as emergency services. Calima is not uncommon, but it can worsen respiratory issues and reduce visibility, especially when combined with wildfire smoke. The lack of impressive rainfall during these periods further dries out vegetation, increasing the likelihood and intensity of fires. Meteorological agencies expect such patterns to persist, making preparedness and adaptation impressive for communities across the country.
