A southwesterly, moderate and very variable flow prevails over the whole area.
For Plage de Portrieux :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
A few fair-weather cumulus clouds in the morning, sunny, progressively clouding over in the afternoon. No precipitation. In the evening, very cloudy.
No precipitation. SSW force 2 turning E in the middle of the day then NE. Gusts reaching 11 knots from the middle of the day. Smooth to slight sea becoming smooth in the evening. Low, fairly long swell from N. Good visibility becoming excellent in the middle of the day.