A northwesterly, strong and mostly variable flow prevails over the whole area.
For Sarzeau :
No gale warning.
We are 90% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will end.
Overcast skies. Chance of light rain. In the evening, lots of good clear periods.
No precipitation. WNW wind force 3 from the middle of the day. Gusts reaching 16 knots in the middle of the day. Slight sea. Low, fairly long swell from SSW. Good visibility becoming excellent in the evening.