An easterly, very strong and very variable flow prevails over the North and the East of the basin. Over the South-West, it is southerly, strong and very variable.
For Arcachon :
No gale warning.
The reliability of the situation is assessed at 90%.
In the evening, some fair-weather cumulus clouds.
WSW wind force 3. Gusts reaching 12 knots in the evening. Rippled sea. Low, fairly long swell from WNW. Poor visibility.