A northeasterly and very variable flow prevails over the whole area.
For Saint-Cast :
No gale warning.
For the night from Saturday to Sunday NNE force 3 in the early part of the night becoming NE force 2. Gusts reaching 15 knots in the early part of the night.
Slight sea. Low, fairly long swell from NW. Excellent visibility becoming poor in the middle of the night. Daytime of Sunday 4 may : The largely blue sky won.t last.
Sunny becoming changeable in the afternoon. No precipitation. In the evening, lots of good clear periods.
No precipitation. NE wind force 3 continuing all day. Gusts reaching 15 knots. Slight sea. Low, long swell from NW. Poor visibility becoming excellent in the middle of the day then good.
