Evapotranspiration Calculations
Cape Nelson Lighthouse - December 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/12/2025 | 3.6 | 12.6 | 14.7 | 9.9 | 77 | 65 | 7.30 | 22.88 | |
| 02/12/2025 | 4.0 | 0.6 | 16.7 | 11.0 | 75 | 60 | 5.43 | 23.54 | |
| 03/12/2025 | 7.3 | 0.0 | 25.3 | 10.7 | 80 | 27 | 6.36 | 31.51 | |
| 04/12/2025 | 7.2 | 0.0 | 25.2 | 16.6 | 85 | 25 | 6.54 | 29.01 | |
| 05/12/2025 | 4.5 | 0.0 | 17.9 | 9.7 | 85 | 63 | 3.95 | 31.50 | |
| 06/12/2025 | 3.5 | 0.6 | 16.5 | 11.5 | 93 | 58 | 8.25 | 19.45 | |
| 07/12/2025 | 5.0 | 2.6 | 16.8 | 10.3 | 71 | 51 | 6.67 | 30.55 | |
| 08/12/2025 | 3.7 | 0.0 | 20.6 | 12.1 | 91 | 64 | 8.97 | 17.88 | |
| 09/12/2025 | 4.8 | 0.4 | 17.3 | 13.0 | 85 | 54 | 4.49 | 30.82 | |
| 10/12/2025 | 4.3 | 0.0 | 17.6 | 13.0 | 74 | 63 | 5.00 | 25.25 | |
| 11/12/2025 | 4.5 | 0.0 | 16.9 | 13.1 | 86 | 64 | 7.83 | 31.51 | |
| 12/12/2025 | 4.4 | 0.0 | 20.9 | 12.7 | 87 | 59 | 4.48 | 24.69 | |
| 13/12/2025 | 4.2 | 0.0 | 18.0 | 14.0 | 90 | 63 | 6.05 | 27.07 | |
| 14/12/2025 | 4.4 | 0.0 | 15.1 | 14.0 | 83 | 53 | 8.59 | 25.63 | |
| 15/12/2025 | 4.6 | 0.0 | 15.6 | 11.8 | 68 | 52 | 5.41 | 26.99 | |
| 16/12/2025 | 4.7 | 0.0 | 18.3 | 12.3 | 87 | 59 | 4.68 | 31.35 | |
| 17/12/2025 | 6.5 | 0.0 | 26.0 | 11.8 | 90 | 33 | 4.04 | 31.76 | |
| 18/12/2025 | 8.8 | 0.0 | 34.6 | 16.7 | 64 | 9 | 3.95 | 27.78 | |
| Totals: | 90.0 | 16.8 |
