Evapotranspiration Calculations
Cape Otway Lighthouse - September 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/09/2026 | 3.2 | 0.0 | 19.5 | 9.7 | 95 | 45 | 7.31 | 10.01 | |
| 02/09/2026 | 2.1 | 7.2 | 13.8 | 10.9 | 88 | 66 | 6.92 | 9.78 | |
| 03/09/2026 | 2.7 | 1.0 | 13.8 | 10.2 | 90 | 55 | 10.46 | 13.11 | |
| 04/09/2026 | 2.9 | 1.4 | 17.0 | 9.1 | 88 | 50 | 5.85 | 13.61 | |
| 05/09/2026 | 2.5 | 1.2 | 15.8 | 12.1 | 91 | 65 | 11.08 | 10.63 | |
| 06/09/2026 | 1.8 | 1.4 | 13.8 | 11.3 | 93 | 73 | 7.56 | 10.82 | |
| 07/09/2026 | 2.4 | 1.2 | 12.7 | 10.3 | 92 | 55 | 7.15 | 13.27 | |
| 08/09/2026 | 2.2 | 0.0 | 13.3 | 5.8 | 88 | 64 | 6.03 | 16.00 | |
| 09/09/2026 | 2.7 | 0.6 | 12.3 | 9.3 | 91 | 49 | 9.79 | 11.43 | |
| 10/09/2026 | 2.3 | 0.0 | 14.0 | 9.6 | 92 | 64 | 5.21 | 16.15 | |
| 11/09/2026 | 2.7 | 0.2 | 15.8 | 7.0 | 95 | 47 | 3.89 | 17.44 | |
| 12/09/2026 | 3.4 | 0.0 | 18.7 | 9.1 | 80 | 40 | 4.09 | 16.44 | |
| 13/09/2026 | 5.0 | 0.0 | 24.6 | 13.1 | 83 | 37 | 7.45 | 14.17 | |
| 14/09/2026 | 2.0 | 0.0 | 15.7 | 13.0 | 94 | 72 | 7.26 | 10.64 | |
| 15/09/2026 | 2.8 | 1.8 | 12.6 | 9.4 | 91 | 53 | 10.98 | 16.00 | |
| Totals: | 40.7 | 16.0 |
