An easterly and very variable flow prevails over the North of the basin. Over the South, it is southerly, weak and very variable.
For Arcachon :
No gale warning.
The reliability of the situation is assessed at 90%.
Sunny despite some cloud arriving in late morning. In the evening, clear skies.
SE force 2 turning WNW force 3 in the middle of the day then NNW. Gusts reaching 14 knots from the middle of the day. Smooth sea. Low, fairly long swell from WNW. Excellent visibility.