For Château d"Oléron :
No gale warning.
The reliability of the situation is assessed at 95%.
Fair weather with mostly clear skies. In the evening, relatively clear skies becoming changeable.
N force 3 becoming NNW force 2 in the middle of the day then SE force 3. Gusts reaching 13 knots in the morning. Smooth sea becoming rippled in the middle of the day. Low, short swell from NNW. Excellent visibility becoming excellent in the middle of the day.