A northeasterly and variable flow prevails over the whole area.
For Portonovo : No gale warning.
The reliability of the situation is assessed at 90%.
Sunny becoming changeable in the afternoon.No precipitation.In the evening, very cloudy. Light showers. NNE force 2 turning WSW in the middle of the day then SSW force 3. Gusts reaching 16 knots in the evening. Smooth to slight sea. Low, long swell from W. Excellent visibility.