A westerly, moderate and very variable flow prevails over the whole area.
For Penthièvre :
No gale warning.
The reliability of the situation is assessed at 80%.
Sunny becoming changeable in the afternoon. No precipitation in the morning, light showers in the afternoon. In the evening, cloud and long sunny periods.
Light showers progressively becoming less frequent. W force 3 in the morning becoming WNW force 4 in the evening. Gusts reaching 22 knots in the evening. Slight sea. Low, short swell from WSW. Excellent visibility.