A northeasterly, weak and particularly variable flow prevails over the South of the basin. Over the North, it is westerly, weak and particularly variable.
For Le Tréport :
No gale warning.
For the night from Monday to Tuesday NNE force 2 in the early part of the night becoming force 1. Gusts reaching 17 knots in the early part of the night.
Slight sea becoming smooth to slight in the middle of the night. Low, short swell from N. Excellent visibility becoming good in the middle of the night then good. Daytime of Tuesday 18 august : The unsettled weather will become more unpredictable in the second half of the day.
Good clear periods alternating with cloudy spells, sometimes dense. Risk of some spots of rain in the morning, light showers in the afternoon. In the evening, cloudy spells, sometimes dense.
Light showers progressively becoming less frequent. N force 2 in the morning becoming NNW force 3 in the middle of the day. Gusts reaching 13 knots in the middle of the day. Smooth to slight sea becoming smooth in the middle of the day. Low, short swell from NNE. Good visibility becoming excellent in the middle of the day.