A northwesterly, very strong and mostly variable flow prevails over the whole area.
For Portreth :
Warning moderate gale offshore.
The reliability of the situation is very good.
Good clear periods but lots of cloud, too. Light showers. In the evening, cloudy spells, sometimes dense.
Light showers progressively becoming less frequent. NNW force 5 in the middle of the day becoming NW force 6 in the evening. Gusts reaching 35 knots in the evening. Moderate sea. Low, fairly long swell from WNW. Excellent visibility.