Last lashes of summer: the arrival of the autumn atmosphere has already been set.
The heat will still be summery until the weekend, but from then on there will be significant changes.
BarcelonaThe last few hours have been marked above all by a clear rise in maximum temperatures. Yesterday, temperatures reached 33 to 35°C in Ponent, the Ebro River, and Priorat, with 35°C in Torroja del Priorat and Xerta (Baix Ebre) standing out as the highest recorded on Wednesday. The muggy conditions have also become more pronounced near the sea. A summery atmosphere with values clearly above average will continue into today, with absolute calm and relatively only in most regions. Between Friday and Saturday, cloudy periods will increase along the coast, with some drizzle not being ruled out. However, it will be from Sunday onwards that a pocket of cold air will reactivate the instability. A change in the weather will bring a significant cooling effect next week. It will be then that the autumn breezes will arrive, coinciding with the official entry of the new season next Monday.
Thursday: calm and warm
The weather will remain very calm this Thursday. We wake up again with some low clouds, especially in the south of the country, as well as in some areas between the coast and Central Catalonia, where there is some morning fog. Minor nuances amid a sunny environment that will dominate throughout the day in most regions. Only traces of harmless low clouds will remain in the afternoon on the southern coast, especially in Camp de Tarragona. A pleasant day to take advantage of.
As for temperatures, they will remain fairly similar to Wednesday's. Mild to cool conditions early in the morning, after repeated tropical lows in areas along the central and southern coast, as well as in the Ebro. Highs could even rise a few degrees, especially in the West and the Lleida Pyrenees. Summery weather, with excessively warm temperatures for the season and many temperatures between 27 and 32°C. But in the West and inland south, temperatures will reach 33 to 35°C again. The muggy weather will be marked on the coast.
First change of autumn weather
On Friday and Saturday, there will be increasing cloud cover along the coast, with some drizzle not being ruled out, especially between Camp de Tarragona and the Ebro. Elsewhere in the country, there will be more sun than clouds, with calm and time to spare. Temperatures will remain similar to Thursday's or drop by a few degrees.
But all eyes are on Sunday, when a pocket of cold air will arrive and reactivate instability. With a degree of uncertainty still lingering, showers and storms could affect any point between Sunday and Monday, with local intensity. And the weather isn't expected to clear up in the following days.
The most notable thing will be that this change in weather will usher in a significant freshening of the air that will bring us a hint of autumn, coinciding with the official arrival of the new season on Monday. There may even be heavy rainfall in the high Pyrenees. A situation we will specify in future forecasts.