Spain’s State Meteorological Agency (AEMET) issued a warning last Friday over the arrival of the second heatwave of the summer of 2026, a spell that begins this Sunday and will bring temperatures of up to 42°C in the south-western river valleys of mainland Spain, lasting at least until Tuesday.
According to the agency’s own data, on Monday temperatures are expected to reach 38–40°C in the Miño valley and 37–39°C in inland A Coruña, while in the south-western quadrant maximums of 39–41°C will be widespread, rising to 42°C in river valleys, with 37–40°C on the southern plateau, in the Ebro valley and in the north-eastern depressions.