Air conditioners dehumidy the air which makes it more comfortable. Also, for the most part, direct sunlight is not hitting you while indoors. Compare to being in the shade.
The same air temperature can feel different for several reasons.The feeling of hot or cold is due to the temperature of your skin at least in part.
Dry air allows better evaporation of sweat to cool the skin better, so air with lower relative humidity feels cooler (on the skin). The sweat may dry immediately so there are no visible droplets. When the air is saturated (100% relative humidity) the sweat cannot evaporate, and it runs off.
Outdoors in the sun involves plenty of heat input to the skin (around 1000 watts per square meter). At night or in the shade is different, and our skin can radiate some heat instead.
Air flow (wind) is a factor too, as it can assist cooling by evaporation as well as by carrying heat away.
Clothing has an effect because it changes the area of skin exposed to heating or cooling factors, and may keep heat in like a blanket.
The body compensates to a fair extent, to maintain a constant temperature inside. It does this by sweating, shivering etc.
When we are working the body generates more waste heat due to muscle operation, that needs to be carried away by sweating and such.
But if there is low humidity like L.A. and it is warm ,the room is still cold
mostly depends on relative humidity. high humidity makes heat stifling
this has always puzzled me is it a daft question
