A southwesterly, strong and very variable flow prevails over the whole area.
For Castro Urdiales :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sunny despite some cloudy spells but no rain. Risk of some spots of rain in the morning, no precipitation in the afternoon. In the evening, relatively clear skies becoming changeable.
SSW force 2 turning NE in the middle of the day then SSW force 1. Gusts reaching 6 knots until the middle of the day. Slight sea. Low, fairly long swell from WNW. Good visibility becoming excellent in the middle of the day then good.