A southwesterly, strong and very variable flow prevails over the whole area.
For Saint Sampson Harbour :
Warning moderate gale offshore.
The reliability of the situation is assessed at 85%.
In the evening, cloudy spells, sometimes dense.
Light showers. WSW wind force 6. Gusts reaching 43 knots in the evening. Slight sea. Low, short swell from SW. Excellent visibility.