Evapotranspiration Calculations
Sydney (Observatory Hill) - January 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/01/2026 | 1.7 | 2.8 | 21.5 | 17.9 | 94 | 51 | 0.00 | 7.77 | |
| 02/01/2026 | 3.6 | 3.0 | 26.0 | 17.3 | 95 | 50 | 0.00 | 19.87 | |
| 03/01/2026 | 4.0 | 2.4 | 26.1 | 17.5 | 94 | 57 | 0.00 | 21.70 | |
| 04/01/2026 | 4.3 | 0.2 | 32.3 | 19.7 | 93 | 49 | 0.00 | 22.04 | |
| 05/01/2026 | 4.3 | 1.2 | 29.2 | 19.2 | 92 | 49 | 0.00 | 23.13 | |
| 06/01/2026 | 5.4 | 0.0 | 29.7 | 20.3 | 88 | 54 | 0.00 | 29.01 | |
| 07/01/2026 | 6.0 | 0.0 | 30.4 | 20.7 | 95 | 57 | 0.00 | 31.41 | |
| 08/01/2026 | 6.0 | 0.0 | 33.2 | 21.5 | 92 | 43 | 0.00 | 31.56 | |
| 09/01/2026 | 6.0 | 0.0 | 33.3 | 21.3 | 90 | 46 | 0.00 | 31.48 | |
| Totals: | 41.3 | 9.6 |
