A northwesterly, moderate and mostly variable flow prevails over the whole area.
For Grande plage de Sion :
No gale warning.
We are 90% sure of the situation, because the cloud system could clear up more slowly than forecast.
In the evening, very cloudy.
No precipitation. WNW wind force 4. Gusts reaching 26 knots in the evening. Slight sea. Low, short swell from WSW. Excellent visibility.