A northwesterly, moderate and mostly variable flow prevails over the whole area.
For Portreth :
Warning strong breeze offshore.
The reliability of the situation is very good.
Fog developing into low cloud during the morning, good clear periods with lots of cloud in the afternoon. No precipitation in the morning, possibility of showers in late afternoon. In the evening, very cloudy skies becoming totally overcast.
Chance of light rain. WNW wind force 5 continuing all day. Gusts reaching 29 knots in the morning. Moderate sea becoming slight in the evening. Low, fairly long swell from W. Visibility reduced by fog becoming excellent in the middle of the day.