A northwesterly, moderate and mostly variable flow prevails over the whole area.
For Dinorwic Marina :
Warning strong breeze offshore.
The reliability of the situation is very good.
Clear skies. In the evening, overcast skies.
Light showers. WNW force 3 in the middle of the day becoming NW force 4 in the evening. Gusts reaching 17 knots in the evening. Smooth to slight sea. Low, short swell from W. Excellent visibility becoming excellent in the evening.