High 1031 hPa centered on the North of the Irish Sea moving at 5 knots to the East-South-East to be centered on Wales.
For Saint-Valery-sur-Somme : No gale warning.
We are 80% sure of the situation, because the high pressure system could move in more quickly than forecast.
Lots of good clear periods.No precipitation.In the evening, clear periods developing. No precipitation. NNW wind force 2 from the middle of the day. Gusts reaching 7 knots in the evening. Smooth sea. Low, short swell from W. Excellent visibility becoming good in the evening.