A southwesterly, strong and very variable flow prevails over the whole area.
For Les Moutiers en Retz :
No gale warning.
We are 85% sure of the situation, because the clear patches could be more numerous than forecast.
Very cloudy skies becoming totally overcast. No precipitation. In the evening, overcast skies.
Drizzle fading over time. SW force 4 in the middle of the day becoming force 3 in the evening. Gusts reaching 21 knots in the middle of the day. Slight sea. Low, fairly long swell from W. Good visibility becoming excellent in the evening.