The State Meteorological Agency (AEMET) has issued urgent warnings as Spain transitions from summer-like 30°C heat to a polar maritime cold snap this weekend. A powerful cold front entering through Galicia will bring widespread rain, intense coastal swells, and significant snowfall to northern and central regions.

Polar Air Mass Impact

A polar maritime air mass will cause temperatures to drop by up to 20 degrees in cities like Bilbao and Ourense, which saw near-record spring heat just days prior.

Snow and Coastal Alerts

Snow levels are projected to fall to 700-800 meters in the north with accumulations of 40 cm, while orange alerts for coastal swells have been activated for A Coruña and Asturias.

Regional Storm Warnings

Yellow alerts for heavy rain and storms cover southern provinces including Seville and Granada, while Madrid expects a drop from 26°C to 14°C with mountain frost.

Explosive Cyclogenesis Risk

Meteorologists are monitoring the potential for rapid storm intensification that could bring hurricane-force winds to the Canary Islands and heavy Mediterranean swells.

Spain is set to experience a dramatic weather reversal over the weekend of April 11-12, 2026, with the State Meteorological Agency warning of a temperature collapse of up to 20 degrees Celsius in some northern areas within 48 hours, accompanied by rain, strong winds, and snowfall at relatively low altitudes. Friday brought near-summer conditions across much of the country, with cities including Bilbao reaching 29 degrees and Ourense climbing to 32 degrees, according to La Sexta. By Sunday, cities such as Burgos, Segovia, and Teruel are forecast to barely reach 9 or 10 degrees. AEMET has issued orange and yellow warnings covering dozens of provinces across the peninsula, the Balearic Islands, and Melilla. The agency attributes the shift to the arrival of an active cold front through Galicia and a subsequent polar maritime air mass sweeping across the peninsula.

Snow levels could drop to 700 meters by Sunday The cold front is expected to arrive on Saturday, pushing rain from west to east across the peninsula, with precipitation most abundant in the Cantabrian region and mountainous areas of the north and center. Following the front's passage, a mass of very cold air will drive snow levels down to between 700 and 800 meters in the north and center of the peninsula, according to AEMET forecasts reported by eldiario.es. In mountain areas, snow accumulations could exceed 40 (cm) — potential snow accumulation in mountain areas during the episode. Cities such as Lugo, Pamplona, and Burgos are forecast to drop from 30 degrees on Friday to below 15 degrees on Saturday, with overnight minimums in localities including Ávila, Burgos, Guadalajara, León, Logroño, Lugo, Oviedo, and Soria expected to fall between 2 and 4 degrees. Strong north and northwest winds, including the cierzo in the Ebro valley and the tramontana in the northeast, will sharpen the sensation of cold well below what thermometers indicate. On Sunday, the instability will intensify further, extending toward the east of the peninsula and the Balearic Islands, where precipitation could be intense.

Burgos: 9, Segovia: 9, Teruel: 10, Zaragoza: 10, Madrid: 15, Barcelona: 17

AEMET orange alerts cover Atlantic coast from Galicia to Cantabria AEMET has activated orange warnings for Saturday for coastal swells along the A Coruña coast, with yellow swell warnings extending to Pontevedra, Lugo, Asturias, Cantabria, Bizkaia, and Melilla. On Sunday, orange swell warnings will expand to cover Asturias, A Coruña, Lugo, Pontevedra, Cantabria, Bizkaia, and Girona, while yellow swell alerts will be added for Melilla, Málaga, the Balearic Islands, Almería, Granada, and Tarragona. For rain and storms, AEMET has placed yellow alerts on Saturday covering Ávila, Segovia, Córdoba, Granada, Jaén, and Seville, with the Andalusian alerts specifically active between 15:00 and 23:59 hours, according to ABC. Storms in those provinces may be occasionally accompanied by hail. In the Community of Madrid, maximum temperatures are forecast to fall from above 20-25 degrees to between 14 and 18 degrees on Sunday, with minimums between 6 and 9 degrees and the possibility of weak frost on Sierra peaks, per AEMET data reported by eldiario.es. The snow level in the Madrid Sierra could settle around 1,600 meters at midday on Sunday.

Weekend temperature shift in Spain: Friday maximum (Bilbao/Ourense) (before: 29-32°C, after: —); Sunday maximum (Burgos/Segovia/Teruel) (before: —, after: 9-10°C); Madrid maximum temperatures (before: Above 20-25°C, after: 14-18°C); Snow level (north/center) (before: Not present, after: 700-800 meters)

Jorge Rey forecasts recovery to 25 degrees by next week Jorge Rey, a young weather enthusiast from Burgos who gained public recognition for his use of the cabañuelas forecasting method, has also warned of widespread rain across the peninsula this weekend in a video published on his YouTube channel. Rey indicated that Saturday's precipitation will affect northern cities including Burgos, Pamplona, and Bilbao, as well as southern points such as Ceuta and Melilla, while Sunday will bring intensified rains to eastern areas including Zaragoza and Logroño, according to 20 minutos and ABC. He also flagged weak rains for the Canary Islands. Despite the sharp cold snap, Rey anticipates the winter episode will be short-lived, forecasting that temperatures will recover to 25 or 26 degrees in many areas, including the Ebro valley, during the following week.

„Next week the mercury is going to recover, being able to reach values of 25 to 26 degrees again in points also of the Ebro valley.” — Jorge Rey via 20 minutos

La Vanguardia reported that the weekend's weather system involves a phenomenon known as explosive cyclogenesis, with the double storm expected to bring wind gusts exceeding 90 km/h and waves of up to five meters in the Canary Islands. The instability is forecast to begin easing from Monday onward, with conditions gradually stabilizing across the peninsula.

Spain experiences significant weather variability in spring, when Atlantic fronts frequently clash with warm air masses of Saharan origin pushing northward. The Iberian Peninsula's geography, with its high central plateau and northern mountain ranges, amplifies temperature contrasts between frontal passages. Polar maritime air masses reaching the peninsula in April are not unprecedented but are considered unusual given the latitude and the time of year.

Mentioned People

  • Jorge Rey — Popularyzator meteorologii znany z tradycyjnych metod prognozowania pogody

Sources: 13 articles