Wet Bulb Calculator

Estimate the wet-bulb temperature from temperature and humidity.

Wet-bulb temperature (°C) 22.297

Formula: Stull's empirical approximation

Step-by-step with your numbers:

1. Values used:

2. Temperature = 30 °C

3. Relative humidity = 50 %

5. Wet-bulb temperature = 22.297°C

Did we solve your problem today?

Wet-bulb temperature reflects how much evaporative cooling is possible — key for heat safety.

The math behind it

This uses Stull's empirical formula, accurate to about ±0.3 °C for normal conditions.

30 °C at 50% RH → about 22 °C wet-bulb.

Why is wet-bulb dangerous?

A wet-bulb above ~35 °C exceeds the body's ability to cool by sweating.