For La Tranche-sur-Mer :
No gale warning.
The reliability of the situation is assessed at 80%.
Sun in the morning, sunny despite some high cloud in the afternoon. No precipitation. In the evening, clear skies.
NE force 3 in the morning temporarily N in the middle of the day. Gusts reaching 13 knots in the morning. Smooth to slight sea becoming slight in the middle of the day. Low, long swell from W. Excellent visibility.