The weather remained very stable this Saturday, with some intervals of harmless clouds and a practically absolute dominance of the sun. The temperature rose even more, both at dawn and during the central hours of the day, with controlled but more intense heat than in previous days. In fact, it already touched 33 °C in the West and in the interior of the Ebro valley, a situation that will repeat this Sunday, which has begun with generally warm temperatures.

We have left behind a very peaceful and radiant National Day of Catalonia and we are entering a weekend that will continue to be marked by fresh mornings, mild midday temperatures, and sun, although with some nuances in the form of intervals of clouds. At the beginning of next week, we will have a transitory warm peak, but subsequently, we will experience a new drop in temperatures and a possible new episode of showers.

We are in for a very pleasant, radiant National Day of Catalonia to take advantage of, with very few nuances. Temperatures will remain normalized, with plenty of morning coolness and bearable heat kept in check during the middle of the day. Therefore, and as already happened this Thursday, 30 ºC will only be reached or slightly exceeded in parts of the south and in Ponent. The weekend will be similar, with small changes on Saturday, but quite calm and sunny in general. Thermometers will rise slowly, both by day and by night, but always far from extremes. At the beginning of next week we could have a transitory warm peak, which would not last long. We have set our path towards autumn, and, except for transitory peaks, there is no sign that would make us think of a return of extreme summer heat.

Calm will return and no new weather changes are in sight.

Yesterday's rains are now history. From today on, the sun and calm will return to dominate, with north winds still in the extreme areas. But pay attention when you leave the house first thing in the morning, as the air is suddenly cooler everywhere, and even cold in mountain areas. A good sweater is needed to start the day in many regions, while on the coast there have been no tropical minimums recorded anywhere for the first time in a long time. And even though the maximums will rise after Wednesday's thermal drop, the heat will be kept at bay and normal for the dates throughout the week at midday. Therefore, today we are noticing the first airs of an autumn that, now yes, is already approaching. Let's take the opportunity to open windows and cool down the houses. Summer is leaving and the historic heatwaves will not be repeated.

The announced change in weather is now here, which will mark the end of this episode of intense and atypical heat that has accompanied us during the first week of September, with temperature records. The passage of a cold front will complicate the meteorological situation and will make today an unstable day, with irregular downpours and storms that may be intense and leave some torrential deluges, with a risk of local flooding and sudden rising of rivers and streams. The area most affected will be the coast and pre-coast of Barcelona. The clash between cold air at high altitude and the intense heat accumulated over so many days can leave very significant downpours, which is why a large part of the country is on alert for intense rain. In fact, between the early morning and the first hours of the morning, heavy rain has affected the Garraf, the Baix Llobregat, the Penedès, and the north of the Vallès Occidental and Oriental, with a lot of electrical activity. Even so, the precipitation has moved quickly and has not left large accumulations for the moment. For example, more than 20 l/m² have already accumulated in a short time in Cunit, in the Baix Penedès.

The atypical and historic heat that has accompanied us at the beginning of this month is numbered, with weather that will already start to change on Tuesday and a temperature that will begin its descent in some points. It will be on Wednesday when we will notice the change in weather, with intense rain, wind, rough seas, and a lower temperature everywhere, with an environment more typical of the meteorological autumn.

On Tuesday we will experience the final act of this exceptional heatwave, which has left us with many heat records in the month of September. The mercury could rise in some places, but it will remain stable or drop locally in others. The first showers will arrive in the north, a prelude to the notable change in weather on Wednesday.

The nightmare of this atypical and historic heat is numbered. This Monday we will no longer reach 40 °C in the Ponent area, although it will still be very hot. The drop in the thermometer will be slight, around 3 or 4 degrees in some places, enough so that no more records are set. However, it will still be hot, with highs around 38 or 39 °C in Ponent and in the interior of the Ebro. From this Sunday it is worth highlighting new exceptional values, not at all common in the month of September, such as 42.5 °C in Vinebre and 42.3 °C in Torroja del Priorat.

The runaway heat that continues to set temperature records across the country is numbered. This Saturday, the highest maximum for a September since 1914 was once again recorded at the Fabra Observatory, reaching 35.3 °C. With this historic value, there are now four records broken in the city of Barcelona since the beginning of the month. In Ponent, in the interior of the Ebro, and in regions like Priorat, temperatures have reached or neared 40 °C again, with a new September record at 64 of the 128 #XEMA stations with more than twenty years of data.

The unbridled heat continues to set temperature records across the country. This Saturday, the highest maximum for a September since 1914 was recorded again at the Fabra Observatory, with 35.3 °C. With this historic value, there are already four records broken in the city of Barcelona since the beginning of the month. In Ponent, in the interior of the Ebro, and in regions like the Priorat, temperatures reached or brushed against 41 °C, with a new September record at 64 of the 128 XEMA stations with more than twenty years of data.

The unbridled heat continues to set temperature records. Yesterday, Friday, 34.1 °C was recorded at the Fabra Observatory, the highest maximum since 1914 in a September in the city of Barcelona. In Ponent and the interior of the Ebro, temperatures soared again, reaching a sweltering 42.5 °C in Vinebre (Ribera d'Ebre) and up to 39.3 °C in the city of Lleida, the highest maximum in September since 1939. Therefore, it was the hottest September day recorded in Catalonia, with historic values for these dates in 77 of the 128 XEMA stations with more than 20 years of data.

The temperature climbed sharply again, with new records, this Thursday. At the Fabra observatory, it reached 33.1 °C, half a degree less than Wednesday, when 33.6 °C was recorded. Yesterday's value is the second highest since 1914 in a September in the city of Barcelona. In Ponent and the interior of the Ebro, they brushed against 40 °C (39 °C in Vinebre, one of the highest since 2022). If we take the set of Meteocat's automatic stations, 27 out of 128 broke the record for a month of September in 20 years of data, especially those located in Empordà, the Pyrenees, and Ponent.

The temperature rose clearly yesterday Wednesday, when it exceeded 35 °C in many inland points and new heat records were registered in a month of September, as in the case of the Fabra Observatory, where the 33.6 °C measured is the highest value since 1914. All of this is the prelude to an exceptional heatwave that will cause the temperature to be well above the climatic average, with forecasts of registering new temperature records in the coming days.

Meteorological autumn began on Tuesday with very calm weather, dominated by the presence of clouds that, from midday onwards, gained ground, although they did not leave any precipitation. The mercury relaxed a bit, with maximums of 32 ℃ or 33 ℃ where it was hottest, but from this Wednesday onwards the situation will reverse and the temperature will rise notably. We are expecting a second half of the week with thermal values well above the climatic average for early September, with no significant cooling in sight.