For La Tranche-sur-Mer :
No gale warning.
We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Clear skies. In the evening, skies with few clouds.
SSE force 3 in the middle of the day turning N force 2 in the evening. Gusts reaching 14 knots in the middle of the day. Slight sea. Low, long swell from WSW. Excellent visibility.