A northwesterly, strong and very variable flow prevails over the whole area.
For Porthleven :
Warning moderate gale offshore.
The reliability of the situation is very good.
Some fair-weather cumulus clouds. In the evening, cloudy spells, sometimes dense.
No precipitation. NW force 5 in the middle of the day becoming force 4 in the evening. Gusts reaching 43 knots in the middle of the day. Slight sea. Low, long swell from WSW. Poor visibility becoming reduced by mist in the evening.