For La Tranche-sur-Mer :
No gale warning.
We are 90% sure of the situation, because the atmosphere might be less unstable and showers more frequent than forecast.
Cloud and long sunny periods. No precipitation. In the evening, good clear periods but cloud building.
No precipitation. SSE force 4 in the morning turning SSW force 3 in the evening. Gusts reaching 18 knots in the morning. Slight sea becoming moderate in the middle of the day. Low, fairly long swell from W then moderate in the middle of the day. Good visibility becoming excellent in the middle of the day.