A northwesterly, very strong and variable flow prevails over the whole area.
For Arcachon :
Warning moderate gale offshore.
We are 80% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will begin.
In the evening, cloud and long sunny periods.
Showers. WNW wind force 6. Gusts reaching 35 knots in the evening. Smooth to slight sea. Low, fairly long swell from WNW. Excellent visibility.