For Hardelot-Plage :
No gale warning.
For the night from Monday to Tuesday NW force 2 turning W force 1 in the middle of the night then WNW. Gusts reaching 17 knots in the early part of the night.
Slight sea. Low, short swell from SE. Excellent visibility becoming good in the middle of the night then good. Daytime of Tuesday 18 august : The atmosphere will remain unstable.
Good clear periods alternating with cloudy spells, sometimes dense. Light showers all day. In the evening, cloudy spells, sometimes dense.
Possibility of showers NW force 2 turning W force 3 in the middle of the day then WNW. Gusts reaching 21 knots in the evening. Slight sea becoming smooth to slight in the middle of the day. Low, short swell from WSW. Good visibility becoming excellent in the middle of the day.