For Saint-Denis-D"Oleron :
No gale warning.
For the night from Thursday to Friday WNW wind force 3 continuing all night. Gusts reaching 16 knots in the early part of the night.
Smooth to slight sea becoming smooth in the middle of the night. Low from N then from NNW in the middle of the night then from WNW. Excellent visibility. Daytime of Friday 28 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 WNW force 3 in the morning becoming force 4 in the evening. Smooth sea becoming slight in the middle of the day. Low from N. Excellent visibility.