For Portonovo :
No gale warning.
The reliability of the situation is very good.
Clear skies. In the evening, hazy cloud giving way to increasingly brighter skies.
No precipitation. NNE force 3 in the middle of the day turning SSE force 2 in the evening. Gusts reaching 15 knots in the middle of the day. Rippled sea. Low, short swell from ENE then from NNW in the evening. Excellent visibility.