Evapotranspiration Calculations

Sydney (Observatory Hill) - December 2025 daily calculations

DateEvapotrans-
piration (mm) 0000- 2400
Rain (mm) 0900- 0900Pan Evaporation (mm) 0900- 0900Max TempMin TempMax Rel Hum (%)Min Rel Hum (%)Average 10m Wind Speed (m/sec)Solar Radiation (MJ/sq m)
01/12/20253.40.0 24.615.059260.0020.64
02/12/20254.70.0 22.913.363350.0031.22
03/12/20255.00.0 26.314.075420.0031.41
04/12/20255.30.0 29.616.485360.0031.35
05/12/20255.30.0 37.818.274120.0031.01
06/12/20254.30.0 33.822.561260.0023.25
07/12/20252.51.6 23.519.881390.0012.50
08/12/20254.70.0 27.218.186550.0025.86
09/12/20255.80.0 31.918.892450.0031.33
10/12/20254.20.0 28.318.390540.0022.63
11/12/20253.20.8 26.419.491460.0016.68
12/12/20251.53.0 22.719.093760.006.52
13/12/20254.71.6 27.316.596560.0026.30
14/12/20255.56.2 32.518.595390.0030.15
15/12/20254.10.2 26.419.184510.0022.71
16/12/20251.90.6 23.816.888540.008.64
17/12/20255.20.2 27.418.186520.0029.60
18/12/20255.80.0 30.818.884480.0031.81
Totals:77.114.2       

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