A northeasterly and variable flow prevails over the South of the basin. Over the North-West, it is southwesterly, moderate and variable. Over the North-East, it is northwesterly, weak and very variable.
For Zarautz :
No gale warning.
The reliability of the situation is assessed at 80%.
Fair weather with mostly clear skies. In the evening, skies with few clouds.
SSW force 2 turning NNW in the middle of the day then W. Gusts reaching 10 knots in the middle of the day. Slight sea. Low, fairly long swell from NW. Good visibility becoming excellent in the middle of the day then good.