For De Saint-Nazaire à Nantes :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Fair weather with mostly clear skies. In the evening, changeable skies becoming less cloudy.
No precipitation. E force 2 turning NNE in the middle of the day then WNW. Gusts reaching 10 knots in the evening. Smooth sea. Low, fairly long swell from W. Good visibility becoming good in the middle of the day then excellent.