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 San Sebastian :
No gale warning.
We are 70% sure of the situation, because the high pressure system could move in more quickly than forecast.
Very cloudy. Light showers. In the evening, very cloudy skies to overcast.
Showers. NW force 2 in the middle of the day turning SW force 3 in the evening. Gusts reaching 12 knots in the evening. Smooth to slight sea. Low, short swell from N then from N in the evening. Good visibility becoming poor in the evening.