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 La Tranche-sur-Mer :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Changeable skies becoming fairly cloud-free in the morning, sunny in the afternoon. Risk of showers in the morning, no precipitation in the afternoon. In the evening, skies with few clouds.
NW force 2 freshening W force 4 in the middle of the day then becoming WNW. Gusts reaching 22 knots from the middle of the day. Smooth to slight sea becoming slight in the middle of the day. Low, fairly long swell from WSW. Excellent visibility.