Evapotranspiration Calculations

Perth Metro - 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)
01/09/20252.50.0 20.54.398401.1018.39
02/09/20252.50.0 21.08.598471.4716.66
03/09/20253.00.2 21.37.297432.1718.80
04/09/20252.70.0 19.68.098471.6918.87
05/09/20251.60.2 17.611.498762.798.73
06/09/20252.432.8 16.510.298554.0012.80
07/09/20252.312.0 18.08.997542.5713.47
08/09/20252.610.6 15.26.598462.2819.37
09/09/20252.60.0 17.23.998401.5919.62
10/09/20252.90.2 20.14.098411.6219.97
11/09/20253.20.0 22.86.298331.5120.11
12/09/20254.30.0 26.58.088212.5419.54
13/09/20253.21.2 23.015.299482.4017.51
14/09/20252.711.8 17.914.699484.6811.62
15/09/20253.18.8 16.511.390493.6918.46
16/09/20252.61.4 18.76.098441.6416.72
17/09/20252.71.4 20.210.999562.4115.56
18/09/20252.713.2 18.59.699472.3115.47
19/09/20252.72.0 20.212.099581.7616.79
20/09/20253.40.2 22.98.699501.7321.73
Totals:55.796.0       

Monthly Archive

Year 
2009JanFebMarAprMayJunJulAugSepOctNovDec
2010JanFebMarAprMayJunJulAugSepOctNovDec
2011JanFebMarAprMayJunJulAugSepOctNovDec
2012JanFebMarAprMayJunJulAugSepOctNovDec
2013JanFebMarAprMayJunJulAugSepOctNovDec
2014JanFebMarAprMayJunJulAugSepOctNovDec
2015JanFebMarAprMayJunJulAugSepOctNovDec
2016JanFebMarAprMayJunJulAugSepOctNovDec
2017JanFebMarAprMayJunJulAugSepOctNovDec
2018JanFebMarAprMayJunJulAugSepOctNovDec
2019JanFebMarAprMayJunJulAugSepOctNovDec
2020JanFebMarAprMayJunJulAugSepOctNovDec
2021JanFebMarAprMayJunJulAugSepOctNovDec
2022JanFebMarAprMayJunJulAugSepOctNovDec
2023JanFebMarAprMayJunJulAugSepOctNovDec
2024JanFebMarAprMayJunJulAugSepOctNovDec
2025JanFebMarAprMayJunJulAugSep