For Saint-Denis-D"Oleron :
No gale warning.
For the night from Tuesday to Wednesday W force 4 in the early part of the night becoming force 3. Gusts reaching 17 knots in the early part of the night.
Slight sea. Low from N. Excellent visibility. Daytime of Wednesday 26 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. W force 3 becoming WSW force 4 in the middle of the day then WNW. Gusts reaching 17 knots in the evening. Slight sea. Low from N then fairly long from W in the evening. Excellent visibility.