A southwesterly, moderate and very variable flow prevails over the whole area.
For Saint-Malo - Port Vauban :
No gale warning.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
Good clear periods but cloud building. No precipitation. In the evening, good clear periods but cloud building.
No precipitation. WSW force 3 in the middle of the day turning NNW force 2 in the evening. Gusts reaching 14 knots in the middle of the day. Smooth sea. Low, fairly long swell from WNW. Poor visibility becoming excellent in the evening.