A westerly, strong and mostly variable flow prevails over the whole area.
For San Sebastián :
Warning moderate gale offshore.
The reliability of the situation is assessed at 90%.
Skies changeable becoming very cloudy in the afternoon. No precipitation. In the evening, overcast skies.
Drizzle intensifying and turning to rain. S force 2 in the morning freshening force 4 in the evening. Gusts reaching 21 knots in the evening. Slight sea. Low, short swell from NW. Poor visibility becoming excellent in the middle of the day.