A westerly, strong and mostly variable flow prevails over the whole area.
For Marans :
No gale warning.
The reliability of the situation is assessed at 95%.
Bright spells increasing during the morning, sunny in the afternoon. No precipitation. In the evening, light cloudy spells.
WNW force 3 turning WSW force 4 in the middle of the day then W. Gusts reaching 20 knots from the middle of the day. Smooth sea. Low, fairly long swell from W. Poor visibility becoming excellent in the middle of the day.