For Royan :
No gale warning.
For the night from Monday to Tuesday WNW force 3 becoming force 2 in the middle of the night then W force 1. Gusts reaching 12 knots in the early part of the night.
Smooth to slight sea. Low from N. Excellent visibility. Daytime of Tuesday 25 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.
Light showers. SW force 2 turning W force 3 in the middle of the day then becoming force 4. Gusts reaching 16 knots in the evening. Smooth to slight sea. Low from N. Excellent visibility.