Evapotranspiration Calculations
Penrith Lakes - August 2026 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) |
| 01/08/2026 | 1.1 | 0.0 | | 16.9 | 4.7 | 95 | 65 | 0.64 | 9.35 |
| 02/08/2026 | 1.5 | 0.0 | | 20.0 | 5.8 | 98 | 50 | 0.98 | 12.65 |
| 03/08/2026 | 1.6 | 0.0 | | 22.1 | 5.0 | 98 | 43 | 1.09 | 9.03 |
| 04/08/2026 | 1.9 | 0.0 | | 19.7 | 4.1 | 97 | 30 | 1.45 | 13.58 |
| 05/08/2026 | 1.8 | 0.0 | | 17.9 | 2.3 | 91 | 36 | 1.51 | 13.54 |
| 06/08/2026 | 1.4 | 0.0 | | 17.8 | 2.1 | 97 | 36 | 0.80 | 12.69 |
| 07/08/2026 | 1.7 | 0.0 | | 19.3 | 4.0 | 97 | 32 | 0.92 | 13.85 |
| 08/08/2026 | 1.7 | 0.0 | | 19.7 | 3.8 | 97 | 38 | 1.04 | 13.98 |
| 09/08/2026 | 0.9 | 0.0 | | 13.9 | 4.4 | 97 | 81 | 0.81 | 7.28 |
| 10/08/2026 | 2.6 | 0.0 | | 17.3 | 7.3 | 97 | 45 | 5.11 | 12.70 |
| 11/08/2026 | 3.1 | | | 20.8 | 11.4 | 77 | 34 | 3.29 | 14.43 |
| 12/08/2026 | 2.0 | | | 19.5 | 5.2 | 94 | 40 | 1.79 | 11.87 |
| 13/08/2026 | 2.2 | | | 21.8 | 5.3 | 96 | 28 | 1.39 | 14.73 |
| 14/08/2026 | 1.8 | 0.0 | | 21.6 | 4.3 | 97 | 37 | 0.73 | 14.81 |
| 15/08/2026 | 1.1 | 0.0 | | 15.6 | 7.6 | 97 | 77 | 0.77 | 7.60 |
| 16/08/2026 | 1.5 | 4.0 | | 17.5 | 8.2 | 97 | 59 | 1.49 | 8.64 |
| 17/08/2026 | 1.1 | 3.4 | | 15.2 | 10.5 | 97 | 88 | 1.40 | 8.19 |
| 18/08/2026 | 1.7 | 1.8 | | 19.3 | 9.5 | 98 | 57 | 0.85 | 12.66 |
| 19/08/2026 | 2.2 | 0.2 | | 21.1 | 8.8 | 98 | 53 | 1.50 | 15.37 |
| 20/08/2026 | 1.7 | 0.0 | | 21.6 | 8.8 | 97 | 54 | 0.88 | 10.43 |
| 21/08/2026 | 2.5 | 0.0 | | 24.1 | 11.4 | 96 | 43 | 1.80 | 13.78 |
| 22/08/2026 | 2.4 | 0.0 | | 24.7 | 6.7 | 97 | 27 | 1.10 | 15.96 |
| 23/08/2026 | 2.3 | 0.0 | | 21.9 | 7.7 | 94 | 50 | 1.49 | 14.80 |
| 24/08/2026 | 2.4 | 0.0 | | 25.9 | 8.6 | 97 | 36 | 0.89 | 15.92 |
| 25/08/2026 | 0.9 | 0.0 | | 16.3 | 11.6 | 97 | 87 | 0.68 | 4.66 |
| 26/08/2026 | 2.1 | 4.4 | | 20.9 | 12.5 | 98 | 59 | 1.58 | 13.13 |
| Totals: | 47.2 | 13.8 | | | | | | | |
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