Evapotranspiration Calculations
Coffs Harbour Airport - September 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) |
| 01/09/2025 | 2.7 | 0.0 | | 21.1 | 10.3 | 96 | 54 | 2.87 | 14.63 |
| 02/09/2025 | 2.5 | 0.0 | | 20.9 | 9.0 | 99 | 60 | 2.38 | 15.73 |
| 03/09/2025 | 3.0 | 0.0 | | 22.5 | 9.0 | 99 | 54 | 2.53 | 19.02 |
| 04/09/2025 | 3.9 | 0.0 | | 26.0 | 7.9 | 100 | 31 | 2.64 | 19.26 |
| 05/09/2025 | 3.8 | 0.0 | | 22.9 | 8.8 | 100 | 39 | 3.90 | 19.12 |
| 06/09/2025 | 2.9 | 29.4 | | 20.3 | 13.3 | 100 | 51 | 3.27 | 16.18 |
| 07/09/2025 | 3.6 | 0.0 | | 22.1 | 8.9 | 99 | 49 | 4.82 | 18.79 |
| 08/09/2025 | 4.6 | 0.0 | | 25.6 | 12.6 | 83 | 46 | 5.12 | 19.47 |
| 09/09/2025 | 2.7 | 0.0 | | 25.3 | 13.8 | 98 | 51 | 1.81 | 12.56 |
| 10/09/2025 | 2.6 | 0.0 | | 25.5 | 16.3 | 99 | 52 | 3.19 | 7.53 |
| 11/09/2025 | 4.6 | 0.0 | | 22.1 | 12.9 | 99 | 32 | 5.98 | 19.53 |
| 12/09/2025 | 3.7 | 0.0 | | 21.1 | 11.1 | 97 | 44 | 4.04 | 20.16 |
| 13/09/2025 | 2.9 | 0.0 | | 21.0 | 9.9 | 100 | 58 | 2.68 | 18.20 |
| 14/09/2025 | 4.0 | 0.2 | | 23.7 | 11.9 | 98 | 47 | 4.68 | 19.50 |
| 15/09/2025 | 5.1 | 0.0 | | 26.4 | 14.1 | 84 | 42 | 5.10 | 20.95 |
| 16/09/2025 | 5.1 | 0.0 | | 26.4 | 13.6 | 86 | 41 | 5.31 | 21.06 |
| 17/09/2025 | 5.2 | 0.0 | | 31.6 | 16.7 | 99 | 40 | 4.01 | 19.73 |
| 18/09/2025 | 3.5 | 0.0 | | 22.9 | 15.2 | 95 | 62 | 3.82 | 19.72 |
| 19/09/2025 | 4.7 | 0.0 | | 27.3 | 14.9 | 99 | 49 | 4.72 | 21.62 |
| 20/09/2025 | 2.8 | 2.6 | | 24.4 | 18.1 | 98 | 51 | 3.55 | 8.77 |
| Totals: | 73.9 | 32.2 | | | | | | | |
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