For La Tranche-sur-Mer :
No gale warning.
The reliability of the situation is assessed at 85%.
Very cloudy skies with short clear spells. The risk of seeing rain will remain low. In the evening, very cloudy.
No precipitation. N wind force 4 continuing all day. Gusts reaching 19 knots from the middle of the day. Slight sea. Low, fairly long swell from WSW. Good visibility becoming excellent in the middle of the day.