A southerly, strong and very variable flow prevails over the South and the West of the basin. Over the North-East, it is northwesterly, moderate and variable.
For Penarth :
Warning strong breeze offshore.
The reliability of the situation is very good.
Good clear periods but lots of cloud, too. Chance of light rain. In the evening, very cloudy skies becoming totally overcast.
Light showers progressively becoming less frequent. E force 1 in the middle of the day freshening SE force 4 in the evening. Gusts reaching 21 knots in the evening. Rippled sea becoming smooth in the evening. Low, short swell from WSW. Excellent visibility becoming good in the evening.