Evapotranspiration Calculations

Colac (Mount Gellibrand) - September 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)
01/09/20251.50.8 13.16.2100776.7913.08
02/09/20252.50.4 14.96.997589.2513.95
03/09/20252.54.6 13.98.8966012.1514.53
04/09/20251.84.6 11.16.4100669.9212.83
05/09/20252.00.4 11.93.197584.3816.00
06/09/20253.20.0 19.64.5100445.2215.83
07/09/20253.60.2 19.17.2915414.799.09
08/09/20252.55.8 16.69.7956511.3911.90
09/09/20252.11.6 13.28.3100637.2315.30
10/09/20251.60.0 11.64.399715.2812.41
11/09/20251.81.0 12.76.1100716.6113.62
12/09/20251.60.0 14.04.7100797.6713.57
13/09/20251.72.8 14.78.4100785.5912.67
14/09/20253.90.4 18.47.6904910.7218.28
15/09/20256.40.0 23.011.6713814.5316.03
16/09/20252.60.2 15.610.8936310.7811.82
17/09/20253.11.0 13.15.6904710.2917.88
18/09/20254.00.0 18.25.185459.0818.34
19/09/20254.30.2 18.48.4974113.7417.02
20/09/20252.05.0 12.14.2986810.8814.25
Totals:54.729.0       

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