A northerly and mostly variable flow prevails over the South and the East of the basin. Over the North-West, it is southerly, moderate and mostly variable.
For La Tranche-sur-Mer :
No gale warning.
The reliability of the situation is assessed at 90%.
Very cloudy skies with short clear spells. No precipitation. In the evening, very cloudy.
No precipitation. NW force 3 in the morning temporarily W in the middle of the day. Gusts reaching 16 knots from the middle of the day. Slight sea becoming smooth to slight in the evening. Low, fairly long swell from WSW. Good visibility becoming excellent in the middle of the day then good.