A northerly, moderate and variable flow prevails over the South-West of the basin. Over the North and the East, it is westerly, moderate and variable.
For Marennes :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies changeable to very cloudy. Light showers progressively dying out in the morning, no precipitation in the afternoon. In the evening, skies with few clouds.
NW force 2 in the morning freshening force 4 in the middle of the day. Gusts reaching 20 knots from the middle of the day. Smooth sea. Low, short swell from WNW temporarily from NNE in the middle of the day. Excellent visibility becoming excellent in the middle of the day.