Eleven Spanish autonomous communities are under alert for severe storms or extreme temperatures. Spain’s State Meteorological Agency, AEMET, has issued yellow warnings across much of the country, with the highest risks concentrated in the northwest and the interior.
Information from RTVE.es, the strongest instability is expected in Galicia, the northwest of Castilla y León and the Cantabrian mountain range, where heavy showers and thunderstorms are forecast. These conditions may also extend to parts of the northern plateau, Extremadura, the Pyrenees and the northern Iberian system. This raises concerns about localized flooding and hazardous travel.
Seven regions, Andalucía, Aragón, Cataluña, Extremadura, Madrid, Navarra and La Rioja, are under alert for high temperatures. Maximum temperatures are expected to exceed 35 to 36°C in the southwest, reach 36 to 38°C in the Ebro valley and approach 40°C in the valleys of the Guadiana and Guadalquivir rivers. Asturias, Cantabria and Galicia face warnings for heavy rain and thunderstorms, while three provinces in Castilla y León, León, Palencia and Zamora, are specifically under storm alerts, with hail also possible.
AEMET operates the National Plan for Prediction and Monitoring of Adverse Meteorological Phenomena, known as Meteoalerta. It provides detailed information on hazardous weather for a forecast horizon of up to 72 hours and updates warnings as conditions develop. Alerts are published by geographic area, including autonomous community, province and island, so affected areas and warning levels can change during the forecast period.
Nighttime conditions are also expected to be challenging in the southwest and along the Mediterranean coast, where so-called “tropical nights” will keep minimum temperatures above 20°C. The persistent heat may affect sleep quality and increase health risks for vulnerable groups.
Winds will generally be light and easterly in the eastern third of the peninsula and the Balearic Islands, while variable breezes are forecast for the central plateaus. In the Canary Islands, trade winds will blow at light to moderate strength. These wind patterns may influence the development and movement of storm systems, particularly in the north and northwest.
Weather patterns in Spain in June often bring a mix of heatwaves and sudden storms, especially in regions with complex terrain. The yellow alert level calls for caution but does not imply widespread disruption. Authorities recommend monitoring AEMET updates and taking preventive measures, particularly in areas where both high temperatures and storms are expected. Heat and humidity can increase the risk of heat-related illness, while sudden downpours may cause localized flooding or travel delays.
Forecast warnings describe expected conditions; observations record what has actually occurred. AEMET’s observation service provides hourly readings, daily extremes and accumulated precipitation from its weather-station network, allowing measured temperatures and rainfall to be distinguished from forecast values.
