For Penthièvre :
No gale warning.
For the night from Sunday to Monday NNW force 1 turning NE force 2 in the middle of the night then becoming force 1. Gusts reaching 10 knots all night.
Smooth to slight sea. Low, fairly long swell from W. Excellent visibility. Daytime of Monday 28 september : The sky will remain changeable.
Cloud and long sunny periods. The risk of seeing rain will remain low. In the evening, cloud and long sunny periods.
Chance of light rain. NE force 1 turning SSW force 2 in the middle of the day then WNW. Gusts reaching 10 knots in the evening. Smooth to slight sea becoming slight in the evening. Low, fairly long swell from W. Excellent visibility.