From summer to autumn suddenly: this is how the weather will evolve in the coming days

BarcelonaSummer heat and calm returned to dominate this Thursday. Placid weather and a very warm atmosphere for the time of year, more typical of mid- to late August, with very muggy conditions on the coast and highs once again reaching 35°C in several parts of the West. On Friday, temperatures will drop a few degrees, but the weather will continue to be intensely hot, muggy, and fairly sunny. The first changes will begin to arrive on Saturday, with more cloudy spells and occasional showers or drizzle on the coast and in the western Pyrenees. And starting Sunday, a pocket of cold air will bring showers and severe storms in many places, and especially a significant cooling off that will abruptly transition us from summer to autumn, coinciding with the arrival of the new season next Monday.

Friday: a profitable day

Sunshine and calm will once again dominate this Friday. There will be repeated morning fog on the pre-coastal and inland areas, and on the coast there will be some harmless low clouds, especially between the Ebro and Camp de Tarragona. There will also be some patches of high, thin clouds. Temperatures will remain similar or drop slightly, especially inland. Small nuances on another very warm and summery day, with marked muggy conditions on the coast and many highs of 27 to 33°C in general, locally higher in the West and inland areas of the Ebro.

The weekend will end with important changes

The first changes will arrive on Saturday, although they are not significant. Throughout the day, we will notice an increase in cloud cover, especially along the coast and in the Pyrenees and Pre-Pyrenees of Lleida. In these areas, the first drops or local showers may escape. These will remain relatively small for now. Temperatures will drop a few degrees further, but the warm and muggy atmosphere will remain.

The most significant change will occur starting Sunday, with the arrival of a pocket of cold air from polar origin. Instability will be very pronounced, and irregular showers and thunderstorms will appear at all points, especially starting in the afternoon. Precipitation distribution remains uncertain, but between the night and early Monday morning, significant downpours may sweep across the territory from west to east, also reaching the coast.

A situation we should monitor closely, as it will pave the way for a significant warming. Temperatures will already be dropping on Sunday, especially inland and the Pyrenees, with high lows at the end of the day. It will be next week when we'll notice the drop, with a suddenly autumnal atmosphere that will leave behind the excessively summery heat of recent days. Remember that on Monday, at 8:19 p.m., astronomical autumn will officially arrive, so it will do so with a bang.