Tudor Hughes wrote:

A humidity of 35% and a dewpoint of 11°C means the temperature
is 28°C, which was not mentioned. Those are not oppressive conditions
really, but the temperature is quite high and what it feels like may
depend on what you are doing.

Or more likely how much you drank the day before. It's easy to forget
that water loss is a major factor in long hot summers. We seldon have
enough opportunity to gain the experience and keep it in mind for the
next time.

Still though there may be relationship to the aches and pains gout,
rheumatism and arthritis sufferers feel when there is a thundery spell
of the right type.