Evapotranspiration Calculations

Rottnest Island - 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)
01/12/202510.30.0 36.219.588156.0431.26
02/12/20255.40.0 24.519.488669.2528.30
03/12/20256.00.0 24.418.185609.1031.34
04/12/20256.40.0 22.316.772539.6130.97
05/12/20256.10.0 22.316.7755110.1126.86
06/12/20256.30.0 23.417.079539.0231.42
07/12/20256.00.0 23.817.983608.6731.48
08/12/20255.60.0 23.618.183669.8231.37
09/12/20255.90.0 23.717.982618.7331.02
10/12/20256.60.0 26.117.689487.2031.52
11/12/20255.90.0 24.620.389639.2831.44
12/12/20257.30.0 25.219.4834510.8431.44
13/12/20257.90.0 27.618.579357.4531.68
14/12/20259.50.0 37.122.273287.2620.18
15/12/20256.80.4 30.022.097544.7231.72
16/12/20255.50.0 26.019.998694.9830.84
17/12/20256.60.0 23.919.3825110.8230.02
18/12/20256.70.0 24.716.580509.4531.69
Totals:120.80.4       

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