A southerly, weak and particularly variable flow prevails over the North of the basin. Over the South, it is westerly, weak and particularly variable.
For Dinan-Lanvallay :
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 13 knots in the early part of the night.
Smooth sea. Low, fairly long swell from NW then from N in the middle of the night. Excellent visibility becoming good in the middle of the night then good. Daytime of Monday 24 august : The sky will remain changeable.
Good clear periods alternating with cloudy spells, sometimes dense. Risk of showers in the morning, possibility of showers in the afternoon. In the evening, cloudy spells, sometimes dense.
Possibility of showers S force 1 turning NNW force 2 in the middle of the day then becoming force 3. Gusts reaching 15 knots in the evening. Smooth to slight sea. Low from N. Good visibility becoming excellent in the middle of the day.