For Portonovo :
No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Warm sun all day. In the evening, clear skies.
WNW force 3 turning NNW in the middle of the day then WNW force 2. Gusts reaching 16 knots in the middle of the day. Rippled sea. Low from N then from N in the middle of the day then from N. Excellent visibility.