An easterly 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 Penthièvre :
No gale warning.
We are 80% 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, lots of good clear periods.
No precipitation. E force 2 turning SE in the middle of the day then NNW. Gusts reaching 10 knots in the evening. Slight sea. Low, fairly long swell from WSW. Good visibility becoming excellent in the middle of the day.