Start of the week with cloudy intervals and a warm atmosphere

BarcelonaThis Sunday was a quieter day. We saw periods of cloud cover, but we had many sunny spells across much of the country. In addition, we also had a warm midday, which already left temperatures above normal for mid-September. This situation will repeat itself on Monday, with periods of low cloud cover and a cloudier night and evening with an increasing possibility of showers. However, this was nothing compared to the showers we had on Saturday, which broke the record for precipitation in one and five minutes in Catalonia (you'll find the precipitation data at the end of this report).

Monday: cloudy intervals

The weather will be more stable at the start of the week, although there will still be some cloudy periods concentrated on the southern coast and the pre-coast, which will also affect other parts of the country during the morning. Midday will be generally quite sunny, also in the south, and during the afternoon, showers could occur again in the eastern Pyrenees; all of this will be minor. The clouds will increase significantly from evening onwards, and more showers will form in the north, a prelude to the more widespread showers on Tuesday. Temperatures will rise further in the middle of the day, and the warm atmosphere of Sunday midday will be repeated.

Tuesday: showers in some areas

Tuesday's weather forecast will be similar to Monday's, although with increased cloud cover and a brief drop in temperature, with a milder mercury. Some weather models indicate the possibility of scattered showers that could affect some areas, although the situation is uncertain and in no case do we expect widespread or heavy rainfall.

A week with rising mercury

Temperatures will rise on Monday after a warm Sunday and will do so again, especially between Wednesday and Thursday, when highs could exceed 35°C or 37°C in the West and 30°C in other inland regions. We won't be talking about exceptional heat, but we will face the final stretch of astronomical autumn with warmth in the middle of September.

Sunday's storm report

A series of showers and thunderstorms swept across the northern half of the country for much of the early hours of Sunday morning, often accompanied by lightning, strong gusts of wind, and hail. The rainfall was torrential in some cases, and a new Catalan record for accumulated precipitation in just one minute was set: 7.6 l/m² at 5:27 a.m. in La Quar (Berguedà). The 26.1 l/m² accumulated in five minutes in the same municipality is also a record, at least since rainfall per minute began to be recorded (2009). During midday and the afternoon, the heaviest rain was concentrated in the Vallès Occidental and nearby regions such as Barcelonès and Maresme. These are the most notable precipitation records of the day:

• Castellbisbal: 97 l/m²
• Sant Cugat del Vallès: 55 l/m²
• The Quart: 52 l/m²
• Fornells de la Selva and Terrassa: 51 l/m²
• La Bisbal de Empordà: 48 l/m²
• Vic: 45 l/m²
• Girona: 44 l/m²
• Sau Reservoir: 41 l/m²
• Orís: 38 l/m²
• Palafrugell: 37 l/m²
• Queralt Sanctuary: 36 l/m²
• Sabadell: 25 l/m²