A northeasterly, moderate and variable flow prevails over the South of the basin. Over the North, it is southwesterly, strong and very variable.
For Saint-Jean-de-Monts :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Very cloudy. But clear spells will become more and more widespread. No precipitation. In the evening, skies with few clouds.
NNW force 3 turning WNW force 4 in the middle of the day then NW. Gusts reaching 24 knots in the evening. Slight sea. Low, fairly long swell from WSW. Good visibility becoming excellent in the middle of the day.