Evapotranspiration Calculations
Byron Bay (Cape Byron) - 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 | 3.3 | 0.0 | 23.2 | 14.2 | 91 | 65 | 4.86 | 18.09 | |
| 02/09/2026 | 3.6 | 0.0 | 22.7 | 15.6 | 84 | 64 | 4.89 | 19.68 | |
| 03/09/2026 | 3.7 | 0.0 | 23.4 | 17.5 | 89 | 65 | 6.21 | 18.91 | |
| 04/09/2026 | 4.2 | 0.0 | 23.1 | 18.4 | 91 | 53 | 5.83 | 19.98 | |
| 05/09/2026 | 3.1 | 0.0 | 23.8 | 15.9 | 98 | 78 | 5.26 | 20.10 | |
| 06/09/2026 | 4.4 | 0.0 | 26.9 | 19.5 | 92 | 62 | 6.73 | 20.27 | |
| 07/09/2026 | 3.4 | 0.0 | 21.7 | 14.8 | 90 | 64 | 5.32 | 18.85 | |
| 08/09/2026 | 2.3 | 1.0 | 18.6 | 14.7 | 97 | 76 | 9.29 | 13.49 | |
| 09/09/2026 | 3.7 | 5.0 | 23.5 | 13.2 | 91 | 63 | 5.14 | 19.97 | |
| 10/09/2026 | 3.4 | 2.4 | 19.1 | 13.8 | 96 | 55 | 11.06 | 12.41 | |
| 11/09/2026 | 3.1 | 12.8 | 19.7 | 12.5 | 98 | 63 | 7.58 | 16.56 | |
| 12/09/2026 | 2.7 | 0.0 | 19.1 | 13.4 | 95 | 62 | 6.27 | 12.14 | |
| 13/09/2026 | 4.0 | 12.4 | 22.3 | 13.8 | 84 | 49 | 4.70 | 19.10 | |
| 14/09/2026 | 4.3 | 0.0 | 24.1 | 15.1 | 75 | 57 | 4.06 | 21.45 | |
| 15/09/2026 | 3.7 | 0.0 | 21.5 | 14.9 | 93 | 63 | 6.34 | 21.70 | |
| Totals: | 52.9 | 33.6 |
