Evapotranspiration Calculations
Ballina Airport - January 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) |
| 01/01/2026 | 6.0 | 0.4 | | 28.6 | 20.0 | 95 | 56 | 3.28 | 29.53 |
| 02/01/2026 | 2.8 | 37.0 | | 25.1 | 19.6 | 97 | 72 | 3.24 | 11.79 |
| 03/01/2026 | 4.3 | 8.0 | | 26.4 | 17.9 | 97 | 68 | 3.39 | 21.99 |
| 04/01/2026 | 4.5 | 0.0 | | 27.9 | 19.0 | 93 | 64 | 3.18 | 20.64 |
| 05/01/2026 | 5.4 | 0.0 | | 29.1 | 21.1 | 94 | 64 | 3.45 | 25.88 |
| 06/01/2026 | 5.5 | 0.0 | | 28.4 | 19.0 | 94 | 64 | 2.55 | 28.28 |
| 07/01/2026 | 5.7 | 0.0 | | 28.0 | 17.9 | 97 | 58 | 2.64 | 29.75 |
| 08/01/2026 | 5.6 | 0.6 | | 28.2 | 19.3 | 95 | 60 | 3.36 | 28.60 |
| 09/01/2026 | 6.2 | 0.0 | | 29.0 | 16.6 | 96 | 52 | 4.75 | 29.58 |
| 10/01/2026 | 5.7 | 0.8 | | 29.4 | 19.7 | 95 | 65 | 5.52 | 28.06 |
| 11/01/2026 | 6.0 | 0.0 | | 31.3 | 23.4 | 94 | 61 | 4.98 | 26.22 |
| 12/01/2026 | 1.9 | 22.8 | | 23.8 | 21.4 | 96 | 88 | 4.97 | 8.02 |
| 13/01/2026 | 4.3 | 10.6 | | 28.1 | 21.4 | 96 | 77 | 4.29 | 21.41 |
| 14/01/2026 | 6.0 | 1.6 | | 28.0 | 21.0 | 95 | 61 | 4.56 | 30.03 |
| 15/01/2026 | 5.7 | 0.0 | | 28.1 | 19.9 | 94 | 58 | 3.36 | 28.10 |
| 16/01/2026 | | 0.8 | | | 22.9 | 95 | 68 | 4.78 | 26.69 |
| 17/01/2026 | 5.2 | | | 29.7 | 23.6 | 95 | 72 | 4.11 | 24.83 |
| 18/01/2026 | 3.3 | 5.0 | | 26.7 | 22.0 | 95 | 71 | 3.76 | 13.35 |
| 19/01/2026 | 6.1 | 6.2 | | 27.2 | 21.5 | 89 | 53 | 6.49 | 26.25 |
| 20/01/2026 | 4.0 | 5.0 | | 24.8 | 19.4 | 94 | 60 | 5.00 | 16.88 |
| 21/01/2026 | 5.4 | 1.8 | | 26.4 | 16.5 | 94 | 61 | 3.52 | 29.43 |
| 22/01/2026 | 6.6 | 0.0 | | 32.9 | 16.6 | 96 | 46 | 3.10 | 29.91 |
| 23/01/2026 | 2.6 | 0.6 | | 24.8 | 22.6 | 89 | 69 | 4.42 | 6.93 |
| 24/01/2026 | 4.0 | 0.0 | | 27.5 | 20.7 | 93 | 68 | 4.11 | 17.54 |
| 25/01/2026 | 5.7 | 0.0 | | 30.3 | 20.7 | 95 | 69 | 4.73 | 28.08 |
| 26/01/2026 | 7.0 | 0.0 | | 33.2 | 24.3 | 92 | 56 | 4.62 | 29.46 |
| 27/01/2026 | 4.1 | 0.8 | | 27.8 | 22.5 | 94 | 61 | 4.52 | 15.42 |
| 28/01/2026 | 5.2 | 0.0 | | 27.4 | 18.3 | 84 | 56 | 4.15 | 22.63 |
| 29/01/2026 | 5.9 | 0.0 | | 27.8 | 21.0 | 76 | 60 | 5.77 | 24.83 |
| 30/01/2026 | 5.2 | 0.0 | | 28.0 | 22.2 | 90 | 63 | 4.15 | 23.96 |
| Totals: | 145.9 | 102.0 | | | | | | | |
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