For La Tranche-sur-Mer :
Warning strong breeze.
We are 85% sure of the situation, because the atmosphere might be less unstable and showers rarer than forecast.
Very cloudy skies with short clear spells. Risk of showers in the morning, light showers dying away progressively in the afternoon. In the evening, very cloudy skies to overcast.
Risk of showers in the early hours. WSW force 5 in the morning temporarily force 6 in the middle of the day. Gusts reaching 29 knots in the middle of the day. Slight sea. Low, fairly long swell from SSW. Excellent visibility.