The first heat official wave of summer will see the temperatures soar in almost all areas of Spain, even climbing above 40 degrees in many parts of the country, according to the State Meteorological Agency (Aemet).
This Wednesday, 11 August, will see the arrival the heatwave that is expected to last until at least Monday, 16 August, and a total of 31 provinces are on yellow (risk) and amber (significant risk) warnings due to high temperatures.
Specifically, they are Madrid, Mallorca, Huesca, Zaragoza, Teruel, Lleida, Girona, Barcelona, Tarragona, Cordoba, Granada, Jaén, Almería, Seville, Toledo, Albacete, Ciudad Real, Cuenca, Guadalajara, Badajoz, Cáceres, Soria, Ávila, Burgos, Salamanca, Segovia, Valladolid, Zamora, Navarra, La Rioja and Murcia.
Aemet has also activated the yellow warning in Malaga province, which affects the Antequera region on Friday, 13 August, from 2pm to 9pm, with a an expected maximum of 39 degrees.
Only the Cantabrian area and a good part of Galicia will be spared from the hot air mass from North Africa that will raise the maximum and minimum temperatures (at night) well above the usual values for this time of year.
Accompanying this episode of extreme heat, a haze is expected, due to the presence of suspended dust picked up by the long journey of the air mass across the Sahara desert.
What is a heatwave?
According to Aemet, a heatwave is considered an episode of at least three consecutive days weather stations register above the historical average for maximum daily temperatures for the months of July and August during the years from 1971 to 2000.