For Château d"Oléron :
No gale warning.
The reliability of the situation is assessed at 80%.
Fair weather with mostly clear skies. In the evening, clear skies.
NW force 2 in the morning turning WSW force 3 in the middle of the day. Gusts reaching 16 knots in the middle of the day. Rippled sea. Low, short swell from NNW. Poor visibility becoming excellent in the middle of the day then good.