We are 90% sure of the situation, because the high pressure system could move in more quickly than forecast.
Good clear periods alternating with cloudy spells, rather dense in the morning.No precipitation.In the evening, good clear periods but cloud building. No precipitation. NW force 2 in the morning becoming force 3 in the middle of the day. Gusts reaching 16 knots in the evening. Moderate sea. Moderate, fairly long swell from NW. Excellent visibility.
Semaphoren
Station Saint-Jean-de-Luz liegt 3 km von SS Saint Sunniva entfernt