Evapotranspiration Calculations
Cape Otway Lighthouse - October 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/10/2025 | 2.2 | 3.4 | 14.2 | 8.4 | 92 | 71 | 8.93 | 14.40 | |
| 02/10/2025 | 2.0 | 13.2 | 13.3 | 7.0 | 93 | 71 | 10.72 | 11.81 | |
| 03/10/2025 | 2.0 | 6.6 | 14.6 | 8.1 | 95 | 79 | 9.45 | 15.96 | |
| 04/10/2025 | 4.1 | 0.8 | 24.0 | 9.4 | 95 | 51 | 4.29 | 21.29 | |
| 05/10/2025 | 5.1 | 0.0 | 22.9 | 13.4 | 94 | 27 | 9.73 | 6.33 | |
| 06/10/2025 | 3.0 | 12.8 | 13.3 | 10.6 | 84 | 60 | 9.46 | 17.45 | |
| 07/10/2025 | 2.7 | 0.6 | 13.9 | 8.9 | 86 | 58 | 7.60 | 12.22 | |
| 08/10/2025 | 2.9 | 0.0 | 16.7 | 11.0 | 94 | 59 | 7.63 | 14.46 | |
| 09/10/2025 | 3.2 | 3.4 | 15.1 | 10.1 | 89 | 59 | 8.75 | 18.95 | |
| 10/10/2025 | 3.3 | 2.2 | 15.8 | 8.8 | 88 | 58 | 12.15 | 17.65 | |
| 11/10/2025 | 1.9 | 4.0 | 13.8 | 10.5 | 96 | 77 | 8.87 | 12.90 | |
| 12/10/2025 | 3.0 | 17.8 | 15.7 | 10.1 | 94 | 58 | 8.97 | 16.03 | |
| 13/10/2025 | 3.1 | 6.4 | 13.5 | 8.5 | 71 | 51 | 5.29 | 14.32 | |
| 14/10/2025 | 3.1 | 0.0 | 15.0 | 9.6 | 89 | 65 | 8.58 | 21.29 | |
| Totals: | 41.6 | 71.2 |
