For Château d"Oléron :
No gale warning.
The reliability of the situation is assessed at 90%.
Overcast in the morning, increasing sunny spells in the afternoon. No precipitation. In the evening, skies clearing but remaining hazy after improving.
No precipitation. W force 1 becoming force 2 in the middle of the day then NW. Gusts reaching 10 knots in the middle of the day. Rippled sea. Low, fairly long swell from NW. Excellent visibility becoming excellent in the evening.