A northeasterly, moderate and very variable flow prevails over the South and the East of the basin. Over the North-West, it is southwesterly, strong and very variable.
For Playa de San Sebastian :
No gale warning.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fair weather with mostly clear skies. In the evening, lots of good clear periods.
No precipitation. SW force 1 turning NW force 2 in the middle of the day then W. Gusts reaching 11 knots from the middle of the day. Moderate sea becoming slight in the evening. Moderate, long swell from NW then low, fairly long swell in the evening. Excellent visibility becoming good in the evening.