I want to calculate "feels like" temperature indoors, with no sunlight or wind. But I don't know which method to use or if I should combine methods. Below I've given some research results I obtained but the correct method can be something else.

  • Heat Index Calculation looks promising but I know it is mostly used for high temperatures. At least there are adjustments for low temperatures as well.

  • There is also "apparent temperature" calculation given as:

AT = Ta + .348e - .70ws + .70*(Q/ws + 10) - 4.25

  • Where AT is the apparent temperature (C)
  • Ta is the dry bulb temperature (C)
  • e is the humidity (hPa)
  • ws is the wind speed (m/s)
  • Q is the net radiation absorbed per unit of body surface area

I can substitude zero for ws but even then I don't know Q value thus I am not sure if I can use this.

  • There is WetBulb Globe Temperature (WBGT) but it is for outdoor (i guess) because it involves sunlight.
  • 2
    $\begingroup$ For indoor use, you need to consider the radiative temperature of the walls, floor, and ceiling. Outdoor equations (that aren't very scientific to begin with) are not suitable. A 21°C room can feel surprisingly cold when the walls are at 13°C. I'm not an expert at all, but for pointers, see operative temperature and mean radiant temperature on Wikipedia. $\endgroup$
    – gerrit
    Commented Mar 14 at 12:24


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