This Sunday officially begins the advanced heat wave by the Spanish Meteorology Agency (Aemet) days ago. For this reason, the agency has published this noon a new special notice in which it specifies how it will be, how long it will last what areas will affect this first heat wave in August, the second of the summer of 2025.
In the notice, the Aemet already details that throughout the afternoon of this Saturday, “light to moderate” promotions of temperatures will be seen, which will be generalized in the next few days giving rise to the heat wave. High Atlantic pressures on a good part of the territory, added to a Dana in the west peninsular, is what has favored the entrance of a mass of warm and dry air from Africa.
This Sunday the maxims will already exceed 38 degrees generalized in the southwest and southern quadrant of Galicia, reaching 40 and 42ºC in Valleles del Guadiana, the Guadalquivir and the Tagus. Monday will continue to raise temperatures on the Cantabrian facade and the maximum of 40ºC will also be seen in the lower basin of the Miño. In the environment of the Guadiana and the Guadalquivir there will be a maximum of 42ºC.
The worst will come on Tuesday, the considered peak of this heat wave: maximums of 40ºC will be seen in low areas of the northern plateau, in the depressions of the northeast and in the peninsular southeast. On Wednesday, August 6, it will be a day similar to Tuesday, although temperatures are expected to moderate in the Peninsular North.
It will cost to sleep: although the minimum temperatures will not rise so much in this heat wave, they will do so, which will affect night temperatures. It will not get off 23ºC or 25ºC at night in large areas of the Centro and South Peninsular, or in the Mediterranean coast.
Thursday 7 is expected to continue the heat wave, since “the most likely scenario” that the Aemet handles is that the temperatures rise in the Eastern Cantabrian and in the Eastern Peninsular third, but a decrease in the west begins that would generalize the entire territory in the following days. As it is not known how many degrees are those promotions and those descents, the Aemet does not ensure that Thursday is the last day: the heat wave could continue more days.
The agency, on the other hand, has also clarified that in the Canary Islands the temperatures will rise, but it will not suffer the magnitude of the heat wave that will be lived in the peninsula from this Sunday, August 3.