For Portonovo :
No gale warning.
The reliability of the situation is assessed at 90%.
Skies progressively hazing over in the morning, sunny in the afternoon. No precipitation. In the evening, skies with few clouds covering over progressively.
No precipitation. W force 1 turning NNW in the middle of the day then W force 2. Rippled sea. Low, short swell from NNW. Good visibility becoming good in the middle of the day then poor.