If the temperature was 100 F and humidity was 0% would you still sweat?

Question

if you went out for a walk on a sunny day?

Answer 1

Yes you could still sweat.  humidity has nothing to do with it.  It's your body's cooling system....

Answer 2

You would become dehydrated a lot faster, too. Just think about Death Valley--it doesn't feel so unbearably hot because of the low humidity, but a lot of people die because they fail to keep enough water in their system.

Answer 3

of course you would its hot outside sweating is your body trying to cool you off. Sweating has nothing to do with humidity

Answer 4

You would still sweat, but the sweat would leave your skin before it had a chance to bead up and become noticeable.  Conditions very similar to that occur here in California during Santa Anas.  I have seen 100+ temperatures with relative humidity at 3%.  The term for that sort of sweating is "insensible perspiration" and it's actually quite common.

Answer 5

Yes, you would sweat.

With 0% humidity, your sweat would evaporate from your body much faster than it would in say 85% humidity because there is less moisture in the air. The result in the 0% would be that you would feel much cooler, since that is what evaporation is, cooling down.

And if you went for a walk in 0% humidity, you would have to bring quite a lot of water! =P

Answer 6

First of all, the humidity is never 0% anywhere on the surface of the earth. 40% is already very, very dry. Second, your sweat has nothing to do with the ambient humidity - you will sweat when your body feels it needs cooling down. It can be because of the heat, because you do a lot of effort or because your metabolism wants to lower a fever.

But how you will react to sweat i.e. how good the sweating will work at cooling you, is very much depending on the relative humidity. The lowest the humidity, the best the cooling effect of sweating will work. That is because when going from water to gas (evaporation) water needs to steal energy in form of heat. The same happens  when ice is smelting. The opposite happens when water is freezing or the humidity in the air is condensating in water droplets. That happens when air rises and cools down adiabatically. When clouds forms, it takes more cooling to stop it. If there is still enough warm and moist air at the bottom, the process continues and turns into thunderstorm. Dry water cools at about 1 degree Celsius per 100 meter of altitude, but saturated air (when the humidity is 100%) cools at about half that rate.