Estimate Wet Bulb Temperature from Dry Bulb and Humidity.
Conditions
Wet Bulb Temp
Wet Bulb (Tw)-°C
About this calculator
Quick Reference
Dry BulbAir Temp
Wet BulbAdiabatic Cooling Limit
Overview
Wet bulb temperature is the lowest temperature that can be reached by evaporating water into the air. It's crucial for understanding heat stress and cooling tower efficiency.
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Pro Tips
If humidity is 100%, Wet Bulb = Dry Bulb.
At higher humidity, evaporative cooling is less effective.
The formula used here is the Stull (2011) approximation.
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Fun Facts
"Humans regulate body temperature via sweating (evaporative cooling)."
"A wet bulb temperature above 35°C is considered survivable for only a few hours for humans."
