For Mouillage de Saint-Cast :
No gale warning.
For the night from Monday to Tuesday WNW wind force 2 continuing all night. Gusts reaching 12 knots until the middle of the night.
Smooth to slight sea. Low from N then fairly long from WNW in the middle of the night then, short swell from NNW. Good visibility becoming poor in the middle of the night then reduced by mist. Daytime of Tuesday 25 august : Warning:reduced visibility early in the day.
Sunny spells with possibility of mist forming in the morning, cloudy spells, sometimes dense, in the afternoon. Risk of showers in the morning, possibility of a few spots in the afternoon. In the evening, cloudy spells, sometimes dense.
Chance of light rain. W force 2 turning NW force 3 in the middle of the day then NNW. Gusts reaching 15 knots in the evening. Smooth to slight sea becoming smooth in the middle of the day. Low, short swell from NNW then from N in the middle of the day. Visibility reduced by mist becoming excellent in the middle of the day.