For Châtelaillon :
No gale warning.
The reliability of the situation is assessed at 90%.
Overcast in the morning, sunny in the afternoon. Some showers in the morning, possibility of a few spots in the afternoon. In the evening, skies with few clouds.
SW force 5 turning WNW in the middle of the day then becoming force 4. Gusts reaching 31 knots in the morning. Slight sea. Low, fairly long swell from W. Excellent visibility.