A northerly, strong and very variable flow prevails over the South-West of the basin. Over the North and the East, it is easterly, moderate and variable.
For Donostia / San Sebastián :
No gale warning.
The reliability of the situation is assessed at 90%.
Sunny despite some cloud arriving in late morning. In the evening, light cloudy spells.
SSE force 2 turning E force 3 in the middle of the day then ESE. Gusts reaching 14 knots in 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.