For Portonovo :
No gale warning.
The reliability of the situation is very good.
Fair weather with mostly clear skies. In the evening, skies gradually hazing over.
No precipitation. NNW force 3 turning NNE force 2 in the middle of the day then NNW force 1. Gusts reaching 11 knots until the middle of the day. Rippled sea. Low, short swell from NNE. Excellent visibility becoming good in the evening.