For Mouillage de Saint-Cast :
No gale warning.
For the night from Sunday to Monday NNE force 2 becoming force 1 in the middle of the night then SE. Gusts reaching 14 knots in the early part of the night.
Smooth sea. Low, fairly long swell from NW then from N at the end of the night. Excellent visibility becoming good in the middle of the night then good. Daytime of Monday 24 august : The atmosphere will remain unstable.
Good clear periods alternating with cloudy spells, sometimes dense. Light showers all day. In the evening, good clear periods but cloud building.
Possibility of showers SSW force 1 in the morning turning NW force 2 in the middle of the day. Gusts reaching 13 knots in the evening. Smooth to slight sea. Low from N. Good visibility becoming excellent in the middle of the day.