For Portonovo :
No gale warning.
We are 75% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fair weather with mostly clear skies. In the evening, skies with few clouds.
NW force 3 in the morning turning W force 2 in the evening. Gusts reaching 17 knots in the middle of the day. Rippled sea temporarily smooth in the middle of the day. Low, short swell from N. Excellent visibility.