Evapotranspiration Calculations
Rottnest Island - 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 | 10.3 | 0.0 | | 36.2 | 19.5 | 88 | 15 | 6.04 | 31.26 |
| 02/12/2025 | 5.4 | 0.0 | | 24.5 | 19.4 | 88 | 66 | 9.25 | 28.30 |
| 03/12/2025 | 6.0 | 0.0 | | 24.4 | 18.1 | 85 | 60 | 9.10 | 31.34 |
| 04/12/2025 | 6.4 | 0.0 | | 22.3 | 16.7 | 72 | 53 | 9.61 | 30.97 |
| 05/12/2025 | 6.1 | 0.0 | | 22.3 | 16.7 | 75 | 51 | 10.11 | 26.86 |
| 06/12/2025 | 6.3 | 0.0 | | 23.4 | 17.0 | 79 | 53 | 9.02 | 31.42 |
| 07/12/2025 | 6.0 | 0.0 | | 23.8 | 17.9 | 83 | 60 | 8.67 | 31.48 |
| 08/12/2025 | 5.6 | 0.0 | | 23.6 | 18.1 | 83 | 66 | 9.82 | 31.37 |
| 09/12/2025 | 5.9 | 0.0 | | 23.7 | 17.9 | 82 | 61 | 8.73 | 31.02 |
| 10/12/2025 | 6.6 | 0.0 | | 26.1 | 17.6 | 89 | 48 | 7.20 | 31.52 |
| 11/12/2025 | 5.9 | 0.0 | | 24.6 | 20.3 | 89 | 63 | 9.28 | 31.44 |
| 12/12/2025 | 7.3 | 0.0 | | 25.2 | 19.4 | 83 | 45 | 10.84 | 31.44 |
| 13/12/2025 | 7.9 | 0.0 | | 27.6 | 18.5 | 79 | 35 | 7.45 | 31.68 |
| 14/12/2025 | 9.5 | 0.0 | | 37.1 | 22.2 | 73 | 28 | 7.26 | 20.18 |
| 15/12/2025 | 6.8 | 0.4 | | 30.0 | 22.0 | 97 | 54 | 4.72 | 31.72 |
| 16/12/2025 | 5.5 | 0.0 | | 26.0 | 19.9 | 98 | 69 | 4.98 | 30.84 |
| 17/12/2025 | 6.6 | 0.0 | | 23.9 | 19.3 | 82 | 51 | 10.82 | 30.02 |
| 18/12/2025 | 6.7 | 0.0 | | 24.7 | 16.5 | 80 | 50 | 9.45 | 31.69 |
| Totals: | 120.8 | 0.4 | | | | | | | |
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