A northerly, weak and variable flow prevails over the South-East of the basin. Over the West and the North, it is southwesterly, moderate and very variable.
For Plage de Portrieux :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Sunny becoming changeable in the afternoon. No precipitation. In the evening, clear periods developing.
No precipitation. W force 2 turning NNE force 3 in the middle of the day then NW. Gusts reaching 18 knots in the evening. Smooth sea becoming smooth to slight in the evening. Low, fairly long swell from N temporarily from N in the middle of the day. Good visibility becoming excellent in the middle of the day.