For Tres Grottes :
Warning strong breeze.
The reliability of the situation is very good.
Good clear periods alternating with cloudy spells, sometimes more dense in the afternoon. No precipitation. In the evening, cloudy spells, sometimes dense.
No precipitation. NE force 5 in the morning temporarily force 6 in the middle of the day. Gusts reaching 29 knots in the middle of the day. Moderate sea. Low, fairly long swell from N then from N in the middle of the day then from N. Excellent visibility.