Evapotranspiration Calculations
Western Sydney Airport - December 2025 daily calculations
| Date |
Evapotrans-
piration (mm) 0000- 2400 |
Rain (mm) 0900- 0900 |
Pan Evaporation (mm) 0900- 0900 |
Max Temp |
Min Temp |
Max Rel Hum (%) |
Min Rel Hum (%) |
Average 10m Wind Speed (m/sec) |
Solar Radiation (MJ/sq m) |
| 01/12/2025 | 5.3 | 0.0 | | 23.8 | 10.6 | 73 | 26 | 4.22 | 18.42 |
| 02/12/2025 | 6.3 | 0.0 | | 23.6 | 11.4 | 76 | 24 | 4.70 | 27.24 |
| 03/12/2025 | 6.6 | 0.0 | | 30.5 | 10.7 | 88 | 22 | 2.30 | 31.32 |
| 04/12/2025 | 8.0 | 0.0 | | 35.5 | 13.5 | 87 | 14 | 2.87 | 31.30 |
| 05/12/2025 | 8.4 | 0.0 | | 39.5 | 15.0 | 67 | 11 | 2.61 | 29.84 |
| 06/12/2025 | 10.3 | 0.0 | | 40.8 | 17.7 | 60 | 13 | 5.29 | 19.39 |
| 07/12/2025 | 4.8 | 0.0 | | 24.6 | 22.6 | 88 | 25 | 4.46 | 12.76 |
| 08/12/2025 | 5.9 | 0.2 | | 30.8 | 14.9 | 98 | 37 | 2.61 | 26.10 |
| 09/12/2025 | 9.5 | 0.0 | | 37.4 | 16.1 | 94 | 14 | 4.32 | 31.34 |
| 10/12/2025 | 6.0 | 0.0 | | 29.1 | 18.6 | 79 | 46 | 4.04 | 23.74 |
| 11/12/2025 | 3.5 | 4.6 | | 24.2 | 17.4 | 92 | 54 | 4.21 | 12.13 |
| 12/12/2025 | 3.0 | 23.0 | | 23.9 | 17.2 | 97 | 64 | 3.26 | 12.74 |
| 13/12/2025 | 4.7 | 6.2 | | 29.3 | 15.7 | 99 | 42 | 1.59 | 21.81 |
| 14/12/2025 | 7.0 | 9.6 | | 33.4 | 17.5 | 99 | 27 | 2.45 | 30.46 |
| 15/12/2025 | 4.9 | 0.0 | | 26.4 | 16.8 | 97 | 43 | 3.80 | 20.79 |
| 16/12/2025 | 2.1 | 0.4 | | 22.3 | 15.3 | 97 | 64 | 2.18 | 7.02 |
| 17/12/2025 | 6.4 | 0.0 | | 30.6 | 15.6 | 96 | 45 | 2.90 | 30.64 |
| 18/12/2025 | 7.8 | 0.0 | | 38.2 | 17.0 | 95 | 26 | 2.19 | 31.99 |
| Totals: | 110.5 | 44.0 | | | | | | | |
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