Pool Water Evaporation Rates

chem geek

TFP Expert
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Mar 28, 2007
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San Rafael, CA USA
This WaterEvaporation spreadsheet will calculate the evaporation rate given air and water temperature, relative humidity, and wind. Note that this is the wind speed at the surface of the water which is usually quite a bit lower than general wind speed due to fences and the water being somewhat below ground level.

This post shows some of the relative effects for these different parameters where wind speed is the most important.