A southerly, strong and very variable flow prevails over the whole area.
For Penthièvre :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Overcast skies clearing up during the morning, changeable skies becoming relatively cloud-free in the afternoon. No precipitation. In the evening, skies with few clouds.
ENE wind force 3 continuing all day. Gusts reaching 16 knots in the middle of the day. Slight sea. Low, fairly long swell from WSW. Good visibility becoming excellent in the middle of the day then good.