For Portonovo :
No gale warning.
The reliability of the situation is very good.
Fair weather with mostly clear skies. In the evening, clear skies.
WSW force 1 freshening ENE force 3 in the middle of the day then SE force 2. Gusts reaching 11 knots in the middle of the day. Smooth sea becoming rippled in the middle of the day. Low, short swell from NE. Excellent visibility.