For San Sebastián :
No gale warning.
The reliability of the situation is very good.
Warm sun all day. In the evening, skies with few clouds.
SSE force 2 turning WSW force 3 in the middle of the day then W. Gusts reaching 16 knots in the middle of the day. Rough sea. Moderate, fairly long swell from SW. Good visibility becoming excellent in the middle of the day then poor.