Just look http://www.sennen-cove.com/today2.htm

Unbroken sunshine in Penzance this afternoon with superb visibility.
Bank of cloud visible near the eastern horizon all day. Temp stuck
between 18C &19C most of the time.

No Surf. http://www.sennen-cove.com/todaysurf.htm

What was rather surprising was the almost total lack of land based
cumulus on the Penwith peninsula. Particularly around noon when the
wind was very light.

Graham
Penzance