i.e. at higher temperatures with low humidity, dry heat, feels more comfortable than with high humidity.
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Sweat works on the principal that when water evaporates (dries) it takes a little heat with it. That’s why we sweat, to provide extra surface water that will be dried by the air around us and take heat away. Humid air simply has less room to carry water vapor away because it is already filled with more water vapor. So sweat dries slower. Dry air readily picks up more water vapor. So sweat will dry faster, taking heat away. And even when you aren’t sweating, you are always covered in at least some body moisture. You are kinda always sweating just not noticably.
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