A northeasterly, moderate and very variable flow prevails over the South-West of the basin. Over the North and the East, it is westerly, moderate and very variable.
For Saint-Brevin-Les-Pins :
No gale warning.
We are 70% sure of the situation, because the high pressure system could move in more quickly than forecast.
For the night from Tuesday to Wednesday WNW wind force 3 continuing all night. Gusts reaching 13 knots in the early part of the night.
Smooth to slight sea becoming smooth in the middle of the night. Low, short swell from WSW. Excellent visibility becoming poor in the middle of the night then poor. Daytime of Wednesday 19 august : The unsettled weather will become more unpredictable in the second half of the day.
Very cloudy skies with short clear spells. Some light showers from late morning. In the evening, clear periods developing.
Light showers progressively becoming less frequent. WSW force 3 becoming SW force 4 in the middle of the day then W. Gusts reaching 27 knots from the middle of the day. Smooth sea becoming smooth to slight in the middle of the day. Low, short swell from W. Poor visibility becoming excellent in the middle of the day.