A northeasterly, strong and very variable flow prevails over the whole area.
For Port-Joinville :
No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Skies very cloudy, risk of some thundery outbreaks. Risk of showers in the morning, possibility of showers in the afternoon. In the evening, cloud and long sunny periods.
Chance of light rain. E force 3 becoming force 4 in the middle of the day then W force 3. Gusts reaching 18 knots in the morning. Smooth to slight sea. Low, fairly long swell from WNW. Good visibility becoming good in the middle of the day then good.