A northeasterly, strong and very variable flow prevails over the whole area.
For Saint-Denis-D"Oleron :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Bright spells increasing during the morning, cloud and sun in the afternoon. Risk of showers in the morning, no precipitation in the afternoon. In the evening, cloud and long sunny periods.
No precipitation. SE force 3 turning SW force 4 in the middle of the day then W. Gusts reaching 22 knots in the middle of the day. Smooth sea becoming smooth to slight in the evening. Low, fairly long swell from NNW. Excellent visibility.