Calculate Dewpoint, Wet-bulb Temperature from Relative Humidity
Simple online weather calculator to find the dewpoint and the wet-bulb temperature by knowing the values of relative humidity, temperature and actual station pressure.
Dewpoint from Wet-bulb
Temperature:Fahrenheit Celsius Kelvin
Relative Humidity (%):
Actual station pressure:in of Hg mm of Hg millibars (hPA)
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.