A northwesterly, 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.
Cloudy spells, sometimes dense. No precipitation. In the evening, skies with few clouds.
NW wind force 4 from the middle of the day. Gusts reaching 22 knots in the evening. Smooth to slight sea. Low, short swell from N then from N in the evening. Excellent visibility.