A northeasterly and very variable flow prevails over the South of the basin. Over the North, it is westerly, moderate and very variable.
For Vannes :
No gale warning.
For the night from Sunday to Monday N wind force 2 continuing all night. Gusts reaching 16 knots in the early part of the night.
Smooth sea. Low, short swell from W. Excellent visibility becoming good in the middle of the night then poor. Daytime of Monday 21 september : The largely blue sky won.t last.
Cloud and long sunny periods. No precipitation. In the evening, lots of good clear periods.
Chance of light rain. N force 2 in the morning becoming force 3 in the evening. Gusts reaching 17 knots in the evening. Smooth sea. Low, short swell from W. Poor visibility becoming excellent in the middle of the day then excellent.