For Portonovo :
No gale warning.
The reliability of the situation is assessed at 85%.
Fairly clear skies progressively clouding over in the morning, increasing sunny spells in the afternoon. No precipitation. In the evening, cloudy spells, sometimes dense.
No precipitation. SE force 2 becoming ESE force 3 in the middle of the day then SSE. Gusts reaching 16 knots in the evening. Smooth sea becoming smooth to slight in the middle of the day. Low, short swell from ESE. Excellent visibility.