A westerly, strong and mostly variable flow prevails over the whole area.
For Saint-Malo - Port Vauban :
No gale warning.
We are 90% sure of the situation, because the atmosphere might not be as stable as forecast.
Overcast in the morning, changeable skies becoming relatively cloud-free in the afternoon. Some light rain in the morning, no precipitation in the afternoon. In the evening, fair weather with mostly clear skies.
W force 3 turning NW force 4 in the middle of the day then becoming force 3. Gusts reaching 18 knots in the middle of the day. Smooth to slight sea. Low, short swell from WNW. Good visibility becoming good in the middle of the day then excellent.