For Château d"Oléron :
No gale warning.
The reliability of the situation is assessed at 90%.
Good clear periods but with plenty of cloud in the morning, sunny in the afternoon. No precipitation. In the evening, skies with few clouds.
WSW force 3 in the morning turning NNW force 2 in the evening. Gusts reaching 16 knots in the morning. Smooth sea. Low, short swell from NW. Poor visibility becoming excellent in the middle of the day then good.