A northeasterly and very variable flow prevails over the South of the basin. Over the North-West, it is southwesterly, weak and particularly variable. Over the North-East, it is northwesterly, moderate and very variable.
For Bréhat :
No gale warning.
For the night from Monday to Tuesday NNE force 3 in the early part of the night becoming force 2. Gusts reaching 16 knots in the early part of the night.
Smooth to slight sea. Low, short swell from NE. Good visibility becoming good in the middle of the night. Daytime of Tuesday 18 august : The weather will become more uncertain during the day.
Good clear periods alternating with cloudy spells, sometimes more dense in the afternoon. No precipitation in the morning, possibility of showers in the afternoon. In the evening, cloud and long sunny periods.
No precipitation. NNE force 2 freshening force 4 in the middle of the day then force 3. Gusts reaching 16 knots in the evening. Smooth to slight sea becoming smooth in the middle of the day. Low, short swell from NE then from NW in the evening. Good visibility becoming excellent in the middle of the day then good.