The weather

Attention with the temperatures in the coming days: summer heat in sight

Mercury will go climbing positions with a firm step and with increasing calm

18/05/2026
2 min

BarcelonaWe have started the week with instability and temperatures still well in check. Showers and storms have fallen again in many regions since the morning in a very irregular way, especially in points of the coast and pre-coast, regions of the northeast and in the Pyrenees and Pre-Pyrenees. In some cases, torrential downpours accompanied by strong winds and hail have fallen, leaving very significant amounts in a very localized way. Highlights include the exceptional 91 l/m² fallen in Sant Feliu de Guíxols (Baix Empordà), over 70 in Torrelavit (Alt Penedès), 62 in Llagostera (Gironès), 52 in Castell d’Aro (Baix Empordà), 50 in Sant Pere de Riudebitlles (Alt Penedès) or 34 at the Fabra Observatory in Barcelona.

Until dinner time, showers and thunderstorms will be falling in various regions, especially in the northeast, central Catalonia, and the Pyrenees and Pre-Pyrenees. A unsettled period that will lessen in the coming days, although this Tuesday some afternoon ones will still be repeated, more concentrated in the Pyrenees and the northeast. The anticyclone will gradually set in and calm will gain ground. But the news this week will be the clear and constant rise in thermometers. We will reach mid and late week with a summery atmosphere and between 5 and 10 degrees above average in most regions. 30 °C will be reached inland, and even the first 35 °C of the year in Ponent and the south.

Forecast map for this Tuesday morning.

Tuesday: temperatures up

Instability will decrease this Tuesday, but it will not disappear completely yet. Afternoon cloudiness will return, leaving new irregular showers in parts of the Pyrenees and the northeast, with some locally intense storms. Meteocat maintains the alert for heavy rain in some regions.

Forecast map for this Tuesday afternoon.

However, no more showers are expected in more regions, with sun and calm dominating most of the country. Some bands of high and thin clouds will also cross. Temperatures will begin to rise significantly, both day and night, with a warmer atmosphere in the middle of the day. In fact, 30°C could already be reached between Ponent and the interior of the Ebro, while most of the maximums will range between 22 and 27°C in most of the country.

Very warm weather in the coming days

The thermometers will rise with enthusiasm day after day. The strong solar radiation of this time of year and the anticyclone will guarantee this warm atmosphere, which will peak in the middle and end of the week. It will be then when 30 °C will be reached in many parts of the interior and the possible first 35 °C of the year in Ponent and the Ebro interior.

These will be values clearly higher than usual in mid and late May. With a feel more typical of summer than late spring. In short, we will go from one extreme to the other in a few days. And all this with great calm and sun everywhere, with no new rain in the medium term.

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