A northeasterly and variable flow prevails over the South of the basin. Over the North-West, it is southwesterly, moderate and variable. Over the North-East, it is northwesterly, weak and very variable.
For Castro Urdiales :
No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Clear skies or light cloud. Sun hazing over from time to time. No precipitation. In the evening, skies with few clouds.
S force 2 turning NE in the middle of the day then ENE. Gusts reaching 11 knots in the middle of the day. Slight sea. Low, fairly long swell from N. Good visibility becoming excellent in the middle of the day then good.