Evapotranspiration Calculations
Canberra Airport - September 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/09/2025 | 2.2 | 0.2 | 15.9 | -3.6 | 100 | 36 | 1.68 | 17.05 | |
| 02/09/2025 | 2.3 | 0.0 | 16.2 | 1.6 | 100 | 45 | 3.09 | 13.48 | |
| 03/09/2025 | 2.8 | 0.0 | 16.3 | 1.4 | 94 | 46 | 5.33 | 14.85 | |
| 04/09/2025 | 4.1 | 0.0 | 17.5 | 7.8 | 71 | 36 | 7.05 | 16.92 | |
| 05/09/2025 | 2.9 | 0.0 | 16.0 | -2.2 | 96 | 33 | 3.40 | 17.71 | |
| 06/09/2025 | 3.0 | 0.0 | 19.4 | -0.8 | 99 | 32 | 2.57 | 17.87 | |
| 07/09/2025 | 3.2 | 0.0 | 21.0 | 1.8 | 99 | 45 | 4.16 | 15.31 | |
| 08/09/2025 | 4.7 | 0.6 | 22.3 | 11.6 | 90 | 33 | 7.11 | 17.28 | |
| 09/09/2025 | 5.1 | 0.0 | 21.6 | 9.9 | 76 | 18 | 5.63 | 17.92 | |
| 10/09/2025 | 1.1 | 0.0 | 10.9 | 3.8 | 99 | 73 | 3.22 | 5.69 | |
| 11/09/2025 | 2.8 | 46.0 | 15.8 | 4.8 | 99 | 44 | 4.86 | 15.40 | |
| 12/09/2025 | 2.6 | 2.6 | 16.2 | -1.7 | 100 | 44 | 2.64 | 18.84 | |
| 13/09/2025 | 2.7 | 0.0 | 17.9 | -0.9 | 100 | 41 | 1.86 | 19.24 | |
| 14/09/2025 | 3.0 | 0.0 | 17.9 | 0.2 | 100 | 47 | 3.53 | 19.43 | |
| 15/09/2025 | 4.1 | 0.0 | 20.9 | 3.9 | 94 | 32 | 4.85 | 19.61 | |
| 16/09/2025 | 3.7 | 0.0 | 21.2 | 4.3 | 99 | 45 | 6.82 | 13.07 | |
| 17/09/2025 | 3.8 | 8.8 | 16.7 | 7.7 | 84 | 40 | 6.38 | 20.01 | |
| 18/09/2025 | 3.0 | 0.0 | 16.7 | -0.7 | 97 | 40 | 3.25 | 19.79 | |
| 19/09/2025 | 3.2 | 0.0 | 19.0 | -0.1 | 99 | 37 | 3.28 | 16.84 | |
| 20/09/2025 | 3.4 | 12.8 | 14.3 | 9.1 | 100 | 38 | 7.17 | 19.81 | |
| Totals: | 63.7 | 71.0 |
