A northeasterly and mostly variable flow prevails over the South of the basin. Over the North, it is southwesterly, moderate and very variable.
For Vannes :
No gale warning.
For the night from Friday to Saturday NNE wind force 2 continuing all night. Gusts reaching 11 knots in the early part of the night.
Smooth sea. Low, short swell from W. Good visibility becoming poor in the middle of the night then poor. Daytime of Saturday 19 september : The largely blue sky won.t last.
Cloud and long sunny periods. No precipitation. In the evening, clear periods developing.
No precipitation. NE force 2 turning WSW in the middle of the day then WNW. Gusts reaching 13 knots in the evening. Smooth sea. Low, short swell from W. Poor visibility becoming excellent in the middle of the day.