Spain prepares for a new day marked by extreme temperatures this Wednesday, August 6, 2025, within the framework of the SECOND SUMMER HEAT OLAwhich according to the State Meteorology Agency (AEMET) will continue to affect the country at least until the weekend. Temperatures will reach exceptionally high values, with maximum above 40 degrees in central, south and southwest peninsular areasand minimal that will not lower the 25 ºC in large areas.
Notices for high temperatures in much of the country
AEMET has activated this Wednesday notices for extremely high temperatures in several autonomous communities, including Madrid, Castilla-La Mancha, Extremadura, Andalucía, Murcia and the Canary Islands. In the Henares Corridor, in the Community of Madrid, the yellow warning has been decreed, with planned temperatures of up to 39 degrees between 1:00 p.m. and 9:00 p.m. The forecast indicates that, punctually, 40 degrees could be reached in that strip.
In the peninsular south, the thermometers could overcome the 41 ºC in Córdoba, Sevilla, Badajoz and Jaénwhile in Extremadura and Castilla-La Mancha, values are also expected very close to these records, with the Guadiana Valley and the Tagus as critical points of the thermal episode.
In the Canary Islands, the regional government has declared the alert situation due to extreme temperatures and risk of forest fires, with Special Attention in Gran Canariawhere up to 42 ° C in areas of the interior above the 400 meters of altitude.
The north, slightly more tempered but still warm
In contrast to the south, The Peninsular North will experience a more moderate atmospherealthough still very warm for the time of year. In cities such as Bilbao, Vitoria, Pamplona or León, the maxims will range between 30 and 34 degrees, without exceeding warning thresholds, but remaining above the normal values for a month of August.
The heavens will be little cloudy or cleared throughout the north third, with low probability of rains and some intervals of high clouds at the end of the day. On the Galician Cantabrian and Atlantic coast, temperatures will also be high, although mitigated by the marine breeze.
Moderate heat in the Mediterranean and Balearic Islands
In the Mediterranean coast, temperatures will also be high, although slightly more moderate than inside. In provinces like Valencia, Alicante, Tarragona or Barcelona, maximums between 31 and 34 ºC are expectedaccompanied by possible coastal or calm mists during the early morning, especially in coastal areas.
In the Balearic Islands, the situation will be similar. The Aemet foresees a stable time, with clear skies and maximum temperatures around 33 ºC in Palma, Ibiza and Mahón, accompanied by weak winds of the east component. No relevant rainfall is expected, although High moisture episodes, which could increase thermal sensation.
Torrid nights without thermal truce
One of the most worrisome elements of this heat episode is the lack of thermal relief during the night. Aemet warns of the persistence of calls Torrid nightswith minimal that will not descend from the 25 ºC in capitals of the South, Center and even Levante areas.
In cities such as Madrid, Seville, Córdoba, Murcia or Albacete, the minimum temperature is expected to be between 26 and 28 ºC. This nocturnal accumulation of heat hinders the recovery of the body and aggravates the impact of daytime heat.
Recommendations to extreme health risk
AEMET and regional health services recommend Avoid physical activities between the central hours of the day (From 1:00 p.m. to 9:00 p.m.), drink water with frequency even without feeling thirst, remain in shaded or heated spaces and pay special attention to babies, elders and dependent people.
The heat wave will last
This second heat wave could extend until next weekend, with a Light tendency to thermal descent from Sunday, August 10although even without a clear breakdown of the warm pattern. Meanwhile, the organism recalls that this type of episodes are increasingly frequent, intense and durable.