A northerly, strong and mostly variable flow prevails over the whole area.
For Les Sables-d"Olonne :
Warning strong breeze offshore.
We are 90% sure of the situation, because the clear patches could be more numerous than forecast.
Fairly clear skies progressively clouding over in the morning, changeable skies becoming relatively cloud-free in the afternoon. No precipitation. In the evening, skies with few clouds.
NNW force 4 freshening force 6 in the middle of the day then becoming NNW. Gusts reaching 32 knots from the middle of the day. Slight sea. Low, fairly long swell from SSW. Good visibility becoming excellent in the middle of the day.