Else Beekman
The intense heatwave gripping Spain since Sunday shows no signs of easing, with exceptionally high temperatures expected to continue at least until Tuesday 12 August, according to Spain’s State Meteorological Agency (Aemet).
This is the second major heatwave to affect the country this summer, and it has prompted widespread weather alerts, particularly in the south and northeast of the peninsula.
Aemet has warned that daytime highs may reach between 42ºC and 44ºC in parts of Andalucia and the Ebro Valley, especially in inland areas. Only the northern third of the country may see a slight drop in temperatures over the coming days.
Widespread alerts and rising health concerns
According to Aemet spokesperson José Luis Camacho, temperatures are expected to climb sharply on Wednesday across northern Galicia, the Cantabrian coast, the upper Ebro and northeast Castilla y León.
Despite a weakening of the Atlantic anticyclone, stable atmospheric conditions persist, with mostly clear skies expected across the country.
In the Canary Islands, temperatures could reach 37ºC in southern Gran Canaria, while much of mainland Spain and the Balearic Islands will see highs of 34–36ºC. In southern inland regions — particularly the Tajo, Guadiana and Guadalquivir valleys — temperatures are forecast to exceed 40ºC.
Heat to peak Thursday, storms possible Friday
Thursday is expected to bring the most intense heat yet. Aemet forecasts widespread highs above 36ºC. Locally, temperatures will be extreme in the eastern Cantabrian coast and interior regions of Murcia, Segre and the Ebro valley.
On Friday, a shift in weather patterns may bring instability and isolated storms to large parts of the peninsula. Rainfall is likely to be limited. However, the storms could come with strong winds and lightning, increasing the risk of wildfires.
In the Balearic Islands, medium cloud cover is expected, while northern areas of the Canary Islands may see mostly cloudy skies. Despite potential weather changes, temperatures on Friday will remain high, particularly in the south and northeast.
Weekend outlook: more extreme heat
Looking ahead to the weekend, temperatures are expected to rise again. That will happen first in the south and east on Saturday, and then extending to northern Galicia and the Cantabrian region on Sunday. Highs of 40–42ºC are likely in several areas. Herewith, it will be one of the longest and most intense heatwaves of the summer.
Heat-related deaths rise sharply
According to Spain’s Daily Mortality Monitoring System (MoMo), more than 1,500 deaths since 15 May have been attributed to high temperatures. That is a 42% increase compared to the same period in 2024.
Of these, 1,060 occurred in July alone, a 57% rise on last year. So far in August, 58 heat-related deaths have been reported, 47 of them since the current heatwave began.
The data is based on correlations between mortality rates and extreme temperature thresholds that pose a danger to health.
Alicante sees deadliest July from heat in a decade
Health authorities urge caution
Public health officials continue to emphasise the need for vigilance. Vulnerable groups, including the elderly, children, people with chronic illnesses and outdoor workers, are particularly at risk.
Authorities recommend avoiding prolonged exposure to the sun and staying well hydrated. Futhermore, people should seek shade or air-conditioned spaces during the hottest parts of the day.