A westerly, very strong and very variable flow prevails over the whole area.
For Penthièvre :
Warning moderate gale offshore.
The reliability of the situation is assessed at 80%.
Overcast skies clearing up during the morning, sunny becoming changeable in the afternoon. Rain gradually becoming less frequent in the morning, no precipitation in the afternoon. In the evening, good clear periods but cloud building.
No precipitation. WNW force 6 becoming force 5 in the middle of the day then WSW force 3. Gusts reaching 40 knots in the morning. Rough to very rough sea becoming rough in the middle of the day then moderate. Moderate, fairly long swell from WSW. Excellent visibility.