A southwesterly, strong and very variable flow prevails over the whole area.
For Plage de Saint Hilaire de Riez :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fog developing into low cloud during the morning, good clear periods with lots of cloud in the afternoon. No precipitation. In the evening, clear periods developing.
No precipitation. SW force 3 becoming force 4 in the middle of the day then WSW. Gusts reaching 21 knots in the evening. Slight sea. Low, fairly long swell from SW. Visibility reduced by fog becoming excellent in the middle of the day then excellent.