A northerly, strong and mostly variable flow prevails over the West of the basin. Over the East, it is southerly, moderate and mostly variable.
For Plage de Portrieux :
No gale warning.
We are 85% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will end.
Very cloudy skies to overcast. Rain gradually becoming less frequent in the morning, drizzle in late afternoon. In the evening, overcast skies.
Light rain. S force 4 in the morning turning SW force 3 in the evening. Gusts reaching 24 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from N. Excellent visibility becoming excellent in the middle of the day then poor.