A westerly and particularly variable flow prevails over the whole area.
For Saint-Brevin-Les-Pins :
No gale warning.
For the night from Monday to Tuesday WNW force 3 in the early part of the night becoming force 2. Gusts reaching 15 knots in the early part of the night.
Slight sea. Low, short swell from W. Good visibility becoming poor in the middle of the night then poor. Daytime of Tuesday 22 july : The sky will remain changeable.
Good clear periods alternating with cloudy spells, sometimes dense. Risk of some spots of rain in the morning, possibility of showers in the afternoon. In the evening, cloudy spells, sometimes dense.
Chance of light rain. W force 3 in the morning becoming force 4 in the middle of the day. Gusts reaching 16 knots in the evening. Slight sea. Low, short swell from W. Poor visibility becoming excellent in the middle of the day.