High UV & humid air

[Graham Easterling]

Deep blue sky & strong sunshine today. 

Sennen 16:30 (high cloud now visible to the west.)

But the UV down a couple of points compared with the levels it reached in the humid air.

Camborne today Max of 7

Back on 24th when there was misty low cloud & sea fog around

It's always the same. You tend to get lower ozone levels in warm sector ridges, but I still think the higher humidity (sea fog in the near vicinity is best) is a significant factor.

Graham

Penzance