A westerly, moderate and mostly variable flow prevails over the whole area.
For Bassin de Port Guillaume :
Warning strong breeze offshore.
We are 80% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Overcast in the morning, very cloudy with possibility of thunder storms in the afternoon. Light showers all day. In the evening, very cloudy with risk of storms.
Light showers. SW wind force 4 continuing all day. Gusts reaching 26 knots from the middle of the day. Smooth to slight sea becoming slight in the middle of the day. Low, short swell from NW. Excellent visibility.