In uk.sci.weather on Wed, 6 Aug 2003 at 19:45:16, Mark Buckley wrote :
Can someone tell me why it feels so close here in Essex tonight ? I thought
that was linked to humidity - but the RH is only 40% and temp is 31.4 -
feels like pea-soup. You can almost feel the air as you pass through it ?

Can someone please tell me why this is ?

I think comfort (or the lack of it) is best measured by the dew-point in
hot weather. Any dewpoint of around 16C or above feels uncomfortable to
most.

Last night my room reached 29.5C & 60% RH - dewpoint of over 20C. Felt
like a bloody sauna.

Fortunately it cooled down fairly quickly, though.
--
Paul Hyett, Cheltenham, England