A northerly and variable flow prevails over the whole area.
For Arcachon : No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
In the evening, some fair-weather cumulus clouds. NW wind force 3. Gusts reaching 13 knots in the evening. Rippled sea. Low, short swell from NW. Excellent visibility.