For Berck Plage :
No gale warning.
For the night from Friday to Saturday NNW force 2 turning NNE force 1 in the middle of the night then NE. Gusts reaching 12 knots in the early part of the night.
Smooth sea. Low from N. Excellent visibility. Daytime of Saturday 22 august : The sky will remain changeable.
Good clear periods alternating with cloudy spells, sometimes dense. The risk of seeing rain will remain low. In the evening, cloudy spells, sometimes dense.
Chance of light rain. E force 1 turning NW force 2 in the middle of the day then N. Gusts reaching 15 knots in the evening. Smooth sea. Low from N. Excellent visibility.