Eli5: I keep my AC at 21 celsius all year. How come I’m hot in a shirt in summer and cold with a sweather in winter?

Question

Eli5: I keep my AC at 21 celsius all year. How come I’m hot in a shirt in summer and cold with a sweather in winter?

In: 1

Answer 1

Others have posted good answers.

I would like to add that there is a neat “Thermal comfort tool” calculator made by some people at UC Berkeley where you can enter variables and see if the room would be comfortable for a human.

Here you can visualize how more than just the temperature matters.

https://comfort.cbe.berkeley.edu/