Evapotranspiration Calculations
Sydney (Observatory Hill) - 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 | 1.0 | 7.2 | | 17.3 | 8.3 | 96 | 63 | 0.00 | 10.25 |
| 02/08/2026 | 1.2 | 0.0 | | 19.5 | 9.0 | 95 | 58 | 0.00 | 12.56 |
| 03/08/2026 | 1.0 | 0.0 | | 22.2 | 9.5 | 92 | 44 | 0.00 | 8.45 |
| 04/08/2026 | 1.1 | 0.6 | | 19.1 | 8.1 | 93 | 35 | 0.00 | 13.63 |
| 05/08/2026 | 1.0 | 0.0 | | 17.5 | 7.2 | 68 | 37 | 0.00 | 13.47 |
| 06/08/2026 | 1.0 | 0.0 | | 18.7 | 7.9 | 79 | 31 | 0.00 | 12.12 |
| 07/08/2026 | 1.1 | 0.0 | | 19.1 | 8.0 | 82 | 33 | 0.00 | 13.95 |
| 08/08/2026 | 1.2 | 0.0 | | 19.6 | 8.9 | 80 | 44 | 0.00 | 13.75 |
| 09/08/2026 | 1.1 | 0.0 | | 19.3 | 8.7 | 93 | 48 | 0.00 | 9.68 |
| 10/08/2026 | 1.2 | 5.6 | | 17.0 | 11.8 | 83 | 41 | 0.00 | 11.97 |
| 11/08/2026 | 1.3 | 0.2 | | 21.1 | 12.9 | 68 | 33 | 0.00 | 14.46 |
| 12/08/2026 | 1.3 | 0.0 | | 19.5 | 10.1 | 77 | 37 | 0.00 | 13.08 |
| 13/08/2026 | 1.3 | 0.0 | | 20.9 | 10.8 | 75 | 32 | 0.00 | 14.69 |
| 14/08/2026 | 1.4 | 0.0 | | 21.3 | 9.3 | 87 | 34 | 0.00 | 14.84 |
| 15/08/2026 | 1.0 | 0.2 | | 16.3 | 10.5 | 94 | 66 | 0.00 | 6.70 |
| 16/08/2026 | 1.3 | 7.0 | | 18.7 | 10.2 | 96 | 49 | 0.00 | 12.01 |
| 17/08/2026 | 1.3 | 17.2 | | 16.7 | 11.6 | 97 | 74 | 0.00 | 10.22 |
| 18/08/2026 | 1.5 | 6.0 | | 19.8 | 10.8 | 97 | 55 | 0.00 | 13.01 |
| 19/08/2026 | 1.7 | 3.6 | | 20.2 | 10.8 | 96 | 65 | 0.00 | 14.43 |
| 20/08/2026 | 1.5 | 0.0 | | 22.4 | 10.9 | 93 | 46 | 0.00 | 12.43 |
| 21/08/2026 | 1.7 | 0.0 | | 22.8 | 14.9 | 83 | 48 | 0.00 | 14.28 |
| 22/08/2026 | 1.7 | 0.0 | | 23.6 | 11.3 | 94 | 32 | 0.00 | 15.97 |
| 23/08/2026 | 1.6 | 0.4 | | 20.7 | 12.3 | 80 | 56 | 0.00 | 13.68 |
| 24/08/2026 | 2.0 | 0.0 | | 21.8 | 12.6 | 92 | 63 | 0.00 | 16.23 |
| 25/08/2026 | 1.1 | 0.0 | | 20.5 | 14.9 | 95 | 60 | 0.00 | 5.85 |
| 26/08/2026 | 1.4 | 9.0 | | 18.8 | 14.7 | 96 | 65 | 0.00 | 9.74 |
| Totals: | 34.0 | 57.0 | | | | | | | |
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