Calculate Relative Humidity, Dewpoint From Wet-bulb Temperature
Simple online weather calculator to find the relative humidity and the dewpoint by knowing the temperature, wet-bulb temperature and actual station pressure.
Calculation of Relative Humidity, Dewpoint from Wet-bulb Temperature - Weather Calculato
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Temperature
Fahrenheit Celsius Kelvin -
Wet-bulb
Fahrenheit Celsius Kelvin -
Actual station pressure
in of Hg mm of Hg millibars (hPA) -
Dewpoint (Fahrenheit):
-
(Celsius)
-
(Kelvin)
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Relative humidity (%)
Formula
Where,
T = Air temperature,
Tw = Wet-bulb temperature,
psta = Station pressure,
ew = Vapor pressure related to wet-bulb temperature,
es = Saturated Vapor pressure,
e = actual vapor pressure,
rh = Relative humidity,
Td = Dewpoint temperature.
Calculation of relative humidity and dewpoint is made easier by knowing the wet-bulb temperature.It is used in weather forecasting.