A southerly, strong and very variable flow prevails over the North of the basin. Over the South, it is westerly, moderate and variable.
For Playa de Castro Urdiales :
No gale warning.
We are 70% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies changeable to very cloudy. No precipitation in the morning, possibility of showers in the afternoon. In the evening, clear periods developing.
Light showers. WSW force 1 turning NW force 2 in the middle of the day then WSW force 3. Gusts reaching 17 knots in the evening. Slight sea becoming smooth to slight in the middle of the day. Low, short swell from NNE. Good visibility becoming good in the middle of the day then good.