Goodbye to winter weather and to the rainfall in Spain. After several very unstable days on the Peninsula, marked by cold and rain, the beginning of the December long weekend will bring a severe change in environment in good part … of the country. This has been warned by the State Meteorological Agency (Aemet) in his forecast for the days of the Constitution and the Immaculatewhere stability will end up prevailing.
As the agency has pointed out in this prediction, the showers of recent days will give way to the predominance of sun throughout this weekend, allowing the temperatures rise up to 10 degrees compared to what was recorded at the beginning of the week. During these festive days, we will see morning mists in the interior of the peninsula, which will be more “dense and persistent” in the valleys of the country.
Although the weather will be stable in much of the country, the weekend will still begin with persistent rains in some parts of western Spain. The showers will be very noticeable in Galicia and the Cantabrian Sea and is expected to register sea storm in these same precipitations.
Sunday and Monday: predominance of sun; Morning fogs in the interior of the peninsula, in the valleys they will be dense and persistent.
Maritime storm on the Galician and Cantabrian coast until Saturday.
Temperatures will be higher than normal for this time; frost in the Pyrenees. pic.twitter.com/P7SJ7uswEl
— AEMET (@AEMET_Esp) December 4, 2025
The areas of Spain where it will rain this December long weekend
Although it is expected that the high pressures will begin to prevail this weekend, the rain front that has affected Spain in recent hours will continue to leave rainfall in some parts of the country. They will be, yes, less persistent and weaker rains than in previous days, concentrated especially in the north of the country and some areas of the peninsular interior.
During these days, the most important accumulated They will arrive in Galicia and the rest of the Cantabrian communities. There could also be intense rainfall in parts of the Central System, the upper Ebro, the Iberian System and the Pyrenees. As for snow, we will see some snowfall close to 1,000 meters in northern areas, although it will rise to 2,000 meters throughout the day.
In addition, there will also be plenty of low cloudinesswhich will extend until covering the sky in communities like Castilla y León, Extremadura, Castilla-La Mancha, Madrid or Andalusia. During these days, we could also see some fogs which will greatly reduce visibility throughout the weekend. They will be extended, according to Aemet, at least until next Monday, December 8, Day of the Immaculate Conception.
😎 The time of the December long weekend will be marked by the presence of an anticyclone.
🌡️ Mild temperatures, hardly any frost and 20 to 22 °C in coastal areas.
🌂Some rain on Saturday, which will decrease in the following days.
😶🌫️Fogs will form: be careful behind the wheel. pic.twitter.com/iGAFyNCa0G
— AEMET (@AEMET_Esp) December 3, 2025
Temperatures rise during the beginning of the December long weekend in Spain: up to 10 degrees more in these areas
During the December long weekend, temperatures are also expected to skyrocket in much of Spain due to the entry of a warmer air mass. According to Aemet, the thermometers these days will register values ”above usual” for the time, marking in some cases up to 10 degrees more than at the beginning of the week.
Meteored points out that Madrid, Castilla y León, Galicia, La Rioja, Aragón, Castilla-La Mancha, the Region of Murcia and the Valencian Community They will be the regions that, during these next few days, may have positive anomalies close to 10 degrees.
This Friday, for example, temperatures at noon will exceed the 10 ºC barrier in all communities. Furthermore, at points in the Region of Murcia, Valencian Community, Andalusia, Extremadura, Catalonia and Galicia They will touch 20 degrees throughout the Constitution weekend.
On Saturday, the maximums will arrive in the Mediterranean at 25 degreesespecially in some municipalities of Valencia, Alicante and Murcia. As for the rest of Spain, everything indicates that values will remain about 15 to 20 degreeseven in the extreme north of the Peninsula.
As for Sunday, everything indicates that this almost spring-like atmosphere will continue, with quite a few degrees in the mercury. Still, the temperatures will be somewhat lower than on Constitution Day, leaving somewhat softer values. Even so, it is not ruled out that the strong gusts of wind that could be recorded could intensify this winter sensation in many parts of northern Spain.
