A northwesterly and mostly variable flow prevails over the whole area.
For Saint-Cast :
No gale warning.
We are 85% sure of the situation, because in this type of situation, it is difficult to define precisely when the precipitation will begin.
Very cloudy skies with short clear spells. No precipitation in the morning, showers late in the day. In the evening, very cloudy.
Possibility of showers WNW force 3 in the morning becoming force 4 in the middle of the day. Gusts reaching 19 knots from the middle of the day. Smooth to slight sea. Low, short swell from NNW. Excellent visibility.