Wet Bulb Temperature Calculator

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The ordinary air temperature measured in the shade, also called dry-bulb temperature. Valid range for the Stull formula: -20 to 50 °C (-4 to 122 °F).
°C
Relative humidity as a percentage (5-99% for the Stull formula). At 100% the wet-bulb equals the dry-bulb.
%
A globe thermometer measures radiant heat. Enable to enter a globe temperature and compute outdoor WBGT. If omitted, only indoor WBGT is shown.
Wet-bulb temperatureHigh heat stress
24

Stull (2011) formula result

Dew point21.4
WBGT (indoor)25.8
Heat stress levelHigh - Reduce work intensity
Wet-bulb (°C, internal)24
Dew point (°C, internal)21.39
WBGT indoor (°C, internal)25.8
25.8 °C
Low<18Moderate18-23High23-28Very High28-32Extreme32+

Wet-bulb: 24.0 °C - High - Reduce work intensity

  • The wet-bulb temperature of 24.0 °C combines both heat and humidity into a single measure of how efficiently sweat can cool your body.
  • Conditions feel noticeably warm and humid. Moderate exertion is possible for most healthy adults but regular rest and hydration are important.
  • The dew point is 21.4 °C. Above 60 °F (16 °C), most people begin to notice the air as uncomfortably humid.
  • Indoor heat stress category (ISO 7243): High - Reduce work intensity.

Next stepStay hydrated and monitor conditions as temperatures and humidity change throughout the day.

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