A northeasterly and very variable flow prevails over the South of the basin. Over the North, it is southwesterly, moderate and very variable.
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.
Fog giving way to sun in early morning, sunny in the afternoon. No precipitation. In the evening, skies with few clouds.
N force 2 in the morning becoming force 3 in the middle of the day. Gusts reaching 15 knots in the evening. Smooth sea. Low, short swell from N then from N in the middle of the day then from NNE. Poor visibility becoming excellent in the middle of the day.