A westerly, strong and very variable flow prevails over the whole area.
For Ondarreta :
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, skies with few clouds.
SSW force 1 turning NW force 2 in the middle of the day then W force 3. Gusts reaching 13 knots in the evening. Moderate sea becoming slight in the evening. Moderate, long swell from NW then low, fairly long swell in the evening. Excellent visibility becoming excellent in the middle of the day then excellent.