Humidex¶
The Humidex is defined as the temperature (in °C) the human body perceives in hot, humid weather.
More information:
- Environment Canada. Humidex (glossary). https://climate.weather.gc.ca/glossary_e.html#humidex (the source of the humidex definition used here)
- Blazejczyk, K., Epstein, Y., Jendritzky, G. et al. Comparison of UTCI to selected thermal indices. Int J Biometeorol 56, 515–535 (2012). https://doi.org/10.1007/s00484-011-0453-2
How to use¶
You need 2 m air temperature and 2 m dew point temperature in Kelvin.
It returns the Humidex in Kelvin.
Interpret the output¶
The Humidex is described in terms of comfort:
| Humidex (°C) | Discomfort levels |
|---|---|
| 20 – 30 | Little discomfort |
| 30 – 40 | Some discomfort |
| 40 – 46 | Great discomfort, avoid exertion |
| ≥ 54 | Dangerous, possible heat stroke |