Spain’s Late Summer Returns: Temperatures Climb Back Above 30°C
ICON-EU forecast from 18 September 2026: from Saturday to Tuesday, temperatures above 30°C spread across Spain, reaching 36°C in the southwest.
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Summer is not finished with Spain just yet. After a somewhat milder spell, temperatures are set to rise significantly again over the coming days. From Saturday through Tuesday, the heat will spread across much of the country, with temperatures above 30°C becoming increasingly widespread and highs of around 35–36°C possible in the hottest areas by Tuesday.
If you were hoping for a final taste of summer, the weather is about to deliver. Our latest ICON-EU forecast, based on the 18 September 00 UTC model run, shows a clear warming trend across Spain between Saturday and Tuesday.
The heat initially remains concentrated across the southwest, but during Sunday and Monday the 30°C threshold pushes much farther north and east. By Tuesday, parts of central and southwestern Spain could once again feel distinctly midsummer-like.
The hottest weather will be found across southwestern Spain, where Badajoz, Córdoba and Sevilla are forecast to reach around 34°C, while Huelva should see approximately 32°C.
Central Spain remains somewhat more comfortable, with Madrid around 28°C, while Toledo and Ciudad Real reach approximately 29°C.
Along many of Spain’s holiday coasts, conditions look pleasantly warm rather than excessively hot. The model suggests around 27°C in Málaga, 28°C in Almería, 27°C in Benidorm, 26°C in Valencia and 26°C in Barcelona. Palma on Mallorca should reach around 28°C.
Northern Spain will initially be much cooler, particularly close to the Bay of Biscay. Gijón is forecast to reach only around 21°C, with Bilbao near 25°C.
Madrid is expected to reach around 30°C, with similar temperatures forecast for Toledo, Ciudad Real, Zaragoza and Girona. Lleida could climb to approximately 31°C.
Even northern and northwestern parts of Spain become significantly warmer. Lugo and Vigo are forecast to reach around 30°C, with Pamplona also close to 30°C.
The hottest conditions, however, remain in the southwest. Sevilla could reach 35°C, while Córdoba and Badajoz are forecast to reach around 34°C and Plasencia around 33°C.
By this point, Spain’s returning late-summer warmth will clearly no longer be restricted to Andalucía and Extremadura.
The latest ICON-EU forecast gives 31°C for Madrid, 32°C for Toledo and Zaragoza, and 33°C for Lleida. Even León and Burgos could reach around 30°C.
The southwest remains particularly hot, with Badajoz and Sevilla around 35°C, while Córdoba and Plasencia are forecast to reach approximately 34°C.
Warmth also becomes more noticeable towards the Mediterranean. Valencia could reach 31°C, Murcia around 30°C and Barcelona approximately 29°C. Palma on Mallorca is forecast to reach around 29°C.
One of the more striking features is the warmth extending into northwestern Spain. Lugo could climb to 32°C, with Vigo around 31°C, although locations directly exposed to the Cantabrian coast remain considerably cooler.
Southwestern Spain will once again experience temperatures that would not look out of place in midsummer. Badajoz, Córdoba and Plasencia could reach around 36°C, with Sevilla close to 35°C.
Central Spain also turns hot. Both Madrid and Toledo are forecast to reach around 34°C, with Ciudad Real near 33°C.
Further east, Tortosa could also reach 34°C, while Lleida is forecast at 33°C and Zaragoza around 32°C.
The Mediterranean coast warms as well, although the sea continues to moderate temperatures in many coastal locations. Valencia could reach 32°C, Murcia 33°C and Palma around 30°C, while Barcelona remains comparatively comfortable at approximately 27°C.
Interestingly, the Costa del Sol escapes the most intense heat. Málaga is forecast to reach only around 26°C on Tuesday, showing just how important local winds and the nearby Mediterranean can be at this time of year.
In Madrid, forecast highs rise from 28°C on Saturday to 30°C on Sunday, 31°C on Monday and 34°C on Tuesday.
Toledo follows a similar pattern, rising from 29°C to 30°C, then 32°C and finally 34°C.
Further west, Plasencia climbs from 31°C on Saturday to 33°C on Sunday, 34°C on Monday and 36°C by Tuesday.
So this is not simply one isolated hot afternoon. The forecast shows a multi-day warming trend spreading across an increasingly large part of Spain.
Across inland Andalucía, Extremadura and eventually central Spain, however, the heat will become considerably more noticeable. With temperatures potentially reaching 35–36°C, anyone sightseeing or spending long periods outdoors should once again plan activities around the hottest part of the afternoon and remember sun protection and plenty of water.
And with the astronomical start of autumn approaching, the contrast is particularly striking.
Spain may be heading towards autumn on the calendar, but the weather has other ideas. Late summer is making a comeback – and by the beginning of next week, temperatures above 30°C will once again be widespread.
Forecast values are based on the ICON-EU model run from 18 September 2026 at 00 UTC. Forecast temperatures, particularly for Monday and Tuesday, may still change with subsequent model updates.
If you were hoping for a final taste of summer, the weather is about to deliver. Our latest ICON-EU forecast, based on the 18 September 00 UTC model run, shows a clear warming trend across Spain between Saturday and Tuesday.
The heat initially remains concentrated across the southwest, but during Sunday and Monday the 30°C threshold pushes much farther north and east. By Tuesday, parts of central and southwestern Spain could once again feel distinctly midsummer-like.
Saturday: Up to 34°C in the southwest
On Saturday, 19 September, temperatures will still vary considerably across the country.The hottest weather will be found across southwestern Spain, where Badajoz, Córdoba and Sevilla are forecast to reach around 34°C, while Huelva should see approximately 32°C.
Central Spain remains somewhat more comfortable, with Madrid around 28°C, while Toledo and Ciudad Real reach approximately 29°C.
Along many of Spain’s holiday coasts, conditions look pleasantly warm rather than excessively hot. The model suggests around 27°C in Málaga, 28°C in Almería, 27°C in Benidorm, 26°C in Valencia and 26°C in Barcelona. Palma on Mallorca should reach around 28°C.
Northern Spain will initially be much cooler, particularly close to the Bay of Biscay. Gijón is forecast to reach only around 21°C, with Bilbao near 25°C.
Sunday: The 30°C heat begins to spread
The warming trend becomes much more noticeable on Sunday, 20 September.Madrid is expected to reach around 30°C, with similar temperatures forecast for Toledo, Ciudad Real, Zaragoza and Girona. Lleida could climb to approximately 31°C.
Even northern and northwestern parts of Spain become significantly warmer. Lugo and Vigo are forecast to reach around 30°C, with Pamplona also close to 30°C.
The hottest conditions, however, remain in the southwest. Sevilla could reach 35°C, while Córdoba and Badajoz are forecast to reach around 34°C and Plasencia around 33°C.
By this point, Spain’s returning late-summer warmth will clearly no longer be restricted to Andalucía and Extremadura.
Monday: Summer warmth covers much of Spain
By Monday, 21 September, temperatures around or above 30°C become widespread across inland Spain.The latest ICON-EU forecast gives 31°C for Madrid, 32°C for Toledo and Zaragoza, and 33°C for Lleida. Even León and Burgos could reach around 30°C.
The southwest remains particularly hot, with Badajoz and Sevilla around 35°C, while Córdoba and Plasencia are forecast to reach approximately 34°C.
Warmth also becomes more noticeable towards the Mediterranean. Valencia could reach 31°C, Murcia around 30°C and Barcelona approximately 29°C. Palma on Mallorca is forecast to reach around 29°C.
One of the more striking features is the warmth extending into northwestern Spain. Lugo could climb to 32°C, with Vigo around 31°C, although locations directly exposed to the Cantabrian coast remain considerably cooler.
Tuesday: Heat peaks at around 36°C
According to the current forecast, Tuesday, 22 September could bring the peak of this late-summer warm spell.Southwestern Spain will once again experience temperatures that would not look out of place in midsummer. Badajoz, Córdoba and Plasencia could reach around 36°C, with Sevilla close to 35°C.
Central Spain also turns hot. Both Madrid and Toledo are forecast to reach around 34°C, with Ciudad Real near 33°C.
Further east, Tortosa could also reach 34°C, while Lleida is forecast at 33°C and Zaragoza around 32°C.
The Mediterranean coast warms as well, although the sea continues to moderate temperatures in many coastal locations. Valencia could reach 32°C, Murcia 33°C and Palma around 30°C, while Barcelona remains comparatively comfortable at approximately 27°C.
Interestingly, the Costa del Sol escapes the most intense heat. Málaga is forecast to reach only around 26°C on Tuesday, showing just how important local winds and the nearby Mediterranean can be at this time of year.
Madrid: From 28°C to 34°C in four days
The scale of the warming trend becomes especially clear when looking at individual cities.In Madrid, forecast highs rise from 28°C on Saturday to 30°C on Sunday, 31°C on Monday and 34°C on Tuesday.
Toledo follows a similar pattern, rising from 29°C to 30°C, then 32°C and finally 34°C.
Further west, Plasencia climbs from 31°C on Saturday to 33°C on Sunday, 34°C on Monday and 36°C by Tuesday.
So this is not simply one isolated hot afternoon. The forecast shows a multi-day warming trend spreading across an increasingly large part of Spain.
Summer is not ready to leave Spain
For holidaymakers, there is plenty of good news. Coastal temperatures will generally remain much more comfortable than those across the interior, with many Mediterranean destinations seeing afternoon highs in the upper 20s or low 30s.Across inland Andalucía, Extremadura and eventually central Spain, however, the heat will become considerably more noticeable. With temperatures potentially reaching 35–36°C, anyone sightseeing or spending long periods outdoors should once again plan activities around the hottest part of the afternoon and remember sun protection and plenty of water.
And with the astronomical start of autumn approaching, the contrast is particularly striking.
Spain may be heading towards autumn on the calendar, but the weather has other ideas. Late summer is making a comeback – and by the beginning of next week, temperatures above 30°C will once again be widespread.
Forecast values are based on the ICON-EU model run from 18 September 2026 at 00 UTC. Forecast temperatures, particularly for Monday and Tuesday, may still change with subsequent model updates.
