Spain Heatwave: Spain is officially bracing for its third major heatwave of the summer starting Tuesday, July 21, 2026, with temperatures projected to spike up to 45°C (113°F). According to the State Meteorological Agency (AEMET), a persistent high-pressure system is trapping a dense mass of hot, dry air blowing directly from North Africa across the Iberian Peninsula. Here’s all you need to know about the Spain Heatwave, affected regions, safety advisory, and more.
Spain Heatwave: Spain Preparing for 45ºC Scorcher Heat
Spain is officially bracing for its third major heatwave of the summer starting Tuesday, July 21, 2026, with temperatures projected to spike up to 45°C (113°F).
According to the State Meteorological Agency (AEMET), a persistent high-pressure system is trapping a dense mass of hot, dry air blowing directly from North Africa across the Iberian Peninsula.
Along with suffocating daytime temperatures and “tropical nights,” this weather pattern is bringing a massive plume of Saharan dust (known locally as Calima) and elevated meteorological instability, including dry afternoon thunderstorms in mountainous regions.
Spain Heatwave Timeline & Peak Intensity
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Tuesday, July 21: The official heatwave status activates. Inland southeastern regions will immediately spike to between 41°C and 43°C, with localized pockets surpassing 44°C.
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Wednesday, July 22: Extreme conditions expand across central and southern Spain.
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Thursday, July 23: Forecasted as the absolute peak of the event. Temperatures will widely range from 42°C to 44°C across the southeastern third of the country, locally breaching 45°C in the Guadalquivir Valley and Genil basin.
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Friday, July 24 onward: A general temperature drop is anticipated, though forecasters warn high-altitude atmospheric shifts could extend the heatwave over the weekend.
Spain Heatwave: Most Affected Regions
The highest severe-weather alerts are concentrated across Spain’s southern, eastern, and central territories:
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Andalusia & Genil Basin: Expected to experience the absolute highest peaks near 45°C.
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The Ebro Valley & North-Eastern Depressions: Sustained values well over 40°C.
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Interior Balearic Islands: Mallorca and surrounding areas will face multiple consecutive days over 40°C.
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Mountainous Zones: Prone to sudden atmospheric disruptions, raising the threat of dry lightning and severe wind gusts.
Spain Heatwave: Primary Hazards and Safety Disruptions
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Extreme Wildfire Risk: Destructive blazes are already active in Zaragoza and Guadalajara. AEMET has upgraded the fire danger index to “extreme” nationwide as the heat further dries out terrain.
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Health and Tropical Nights: Nighttime temperatures are not expected to drop below 22°C to 25°C in many areas. Public health authorities emphasize that consecutive lack of nighttime cooling dramatically increases heat-exhaustion risks for vulnerable demographics.
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The Calima Phenomenon: The incoming Saharan dust will heavily reduce air quality and visibility, turning skies a hazy orange color.
Emergency services advise residents and travelers to suspend outdoor sports during midday hours, maximize hydration, and closely monitor live updates via the official AEMET Weather Alert System.
