A southerly, strong and very variable flow prevails over the whole area.
For Plage de Riez :
No gale warning.
We are 70% sure of the situation, because the high pressure system could move in more quickly than forecast.
Mist and fog. Risk of some spots of rain in the morning, persistent drizzle in the afternoon. In the evening, low cloud developing into fog.
No precipitation. SSW wind force 3 continuing all day. Gusts reaching 17 knots in the middle of the day. Slight sea. Low, fairly long swell from SW. Visibility reduced by fog becoming reduced by mist in the middle of the day then reduced by fog.