A northerly, moderate and very variable flow prevails over the whole area.
For Pornichet :
No gale warning.
We are 85% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fairly cloudless skies becoming changeable during the morning, some sun but cloud building in the afternoon. The risk of seeing rain will remain low. In the evening, very cloudy.
No precipitation. NNW force 2 in the morning becoming NW force 3 in the middle of the day. Gusts reaching 18 knots from the middle of the day. Smooth sea becoming smooth to slight in the middle of the day. Low, fairly long swell from WSW. Poor visibility becoming excellent in the middle of the day.