A westerly, very strong and very variable flow prevails over the whole area.
For Grande Plage du Sillon :
No gale warning.
The reliability of the situation is assessed at 85%.
Mist and fog. Chance of light rain. In the evening, good clear periods but lots of cloud, too.
Light showers progressively becoming less frequent. SW force 4 in the middle of the day turning WNW in the evening. Gusts reaching 21 knots in the middle of the day. Smooth to slight sea becoming smooth in the evening. Low, fairly long swell from W. Visibility reduced by mist becoming poor in the evening.