An easterly, moderate and mostly variable flow prevails over the whole area.
For Penthièvre :
No gale warning.
The reliability of the situation is assessed at 95%.
Sunny despite some high cloud in the morning, sunny in the afternoon. No precipitation. In the evening, skies with few clouds.
E force 4 becoming ESE force 3 in the middle of the day then E. Gusts reaching 18 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from WSW. Excellent visibility.