On Monday, 28 September 2026, the Basque Country is expected to see extensive cloud, strengthening southerly winds and an increased likelihood of showers and localised thunderstorms. This is according to the forecast published on Sunday by the Basque meteorological agency Euskalmet . It says the chance of precipitation will increase particularly in the second half of the day; thunderstorms may bring strong gusts and brief heavy downpours in some places.
Euskalmet expects the strongest effects where the southerly flow increases instability in the air mass. Temperatures may rise temporarily during the day along the Cantabrian coast before convective cloud increases the likelihood of showers. The forecast applies to the entire autonomous community, including the provinces of Álava, Gipuzkoa and Bizkaia.
No specific official warning levels had initially been issued for Monday by Sunday. However, the agency notes that thunderstorms may occur in very localised areas and vary considerably in intensity. Short-notice updates are therefore possible. On Sunday, regional media consistently highlighted the increased risk of thunderstorms in parts of Bizkaia and near the coast.
For road users, heavy showers may temporarily reduce visibility and road grip. In urban areas, brief increases in runoff and overloaded drains are possible. In agriculture, locally high rainfall rates remain a concern, especially on already saturated ground. Exposed coastal areas should be given particular attention because of possible gusts.
In its extended outlook, the six-day outlook published by Euskalmet indicates changeable weather, with recurring showers and occasional brighter spells. An accurate assessment of the risk of thunderstorms remains uncertain until the short-range forecast period because of the convective nature of the developing weather. For the latest conditions, consult the agency’s short-range forecasts, updated in the morning and during the day, as well as notices from local emergency services.
Facts: The forecast is from Euskalmet and was published on Sunday. Attributed assessments: Regional media point to an increased risk of thunderstorms in coastal areas. Forecasts: Extensive cloud, strengthening southerly winds, showers and localised thunderstorms are expected on Monday; intensity will vary locally.
Editor: Andreas M. Brucker (Article created with AI assistance).