A southwesterly, very strong and variable flow prevails over the whole area.
For Playa de San Sebastian :
No gale warning.
We are 90% sure of the situation, because the cloud cover could move in later than forecast.
Good clear periods but cloud building. No precipitation. In the evening, good clear periods but lots of cloud, too.
No precipitation. ENE force 1 in the middle of the day turning S force 2 in the evening. Gusts reaching 8 knots in the evening. Slight sea. Low, fairly long swell from NW. Excellent visibility becoming excellent in the evening.