Evapotranspiration Calculations
Byron Bay (Cape Byron) - 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 | 6.7 | 0.4 | | 31.1 | 20.6 | 92 | 56 | 5.07 | 29.77 |
| 02/01/2026 | 2.5 | 34.4 | | 24.2 | 19.3 | 98 | 80 | 5.26 | 11.23 |
| 03/01/2026 | 4.3 | 2.8 | | 27.9 | 18.6 | 96 | 66 | 4.68 | 19.29 |
| 04/01/2026 | 4.8 | 0.0 | | 27.5 | 21.4 | 85 | 68 | 5.24 | 20.52 |
| 05/01/2026 | 5.2 | 1.6 | | 26.8 | 22.1 | 92 | 67 | 5.50 | 25.50 |
| 06/01/2026 | 5.6 | 0.0 | | 28.5 | 20.2 | 93 | 67 | 4.42 | 28.14 |
| 07/01/2026 | 6.0 | 0.0 | | 28.6 | 21.4 | 89 | 61 | 4.72 | 28.73 |
| 08/01/2026 | 6.1 | 0.0 | | 29.7 | 21.9 | 85 | 58 | 3.65 | 28.07 |
| 09/01/2026 | 7.1 | 0.0 | | 30.4 | 22.1 | 78 | 55 | 6.21 | 28.98 |
| 10/01/2026 | 5.6 | 1.0 | | 28.1 | 22.4 | 93 | 71 | 7.06 | 28.67 |
| 11/01/2026 | 5.5 | 0.0 | | 30.7 | 22.7 | 97 | 70 | 7.55 | 25.82 |
| 12/01/2026 | 1.0 | 6.4 | | 22.5 | 21.1 | 99 | 97 | 8.04 | 5.46 |
| 13/01/2026 | 3.4 | 20.2 | | 26.3 | 21.0 | 99 | 80 | 6.97 | 17.86 |
| 14/01/2026 | 5.3 | 1.0 | | 26.2 | 21.8 | 94 | 67 | 7.29 | 27.03 |
| 15/01/2026 | 6.0 | 0.0 | | 29.3 | 21.8 | 89 | 63 | 5.43 | 27.23 |
| 16/01/2026 | 5.5 | 0.0 | | 29.1 | 23.7 | 94 | 72 | 5.97 | 27.29 |
| 17/01/2026 | 4.1 | 0.0 | | 29.6 | 23.7 | 94 | 82 | 5.18 | 19.35 |
| 18/01/2026 | 3.4 | 0.0 | | 25.8 | 22.5 | 97 | 77 | 6.40 | 15.97 |
| 19/01/2026 | 5.2 | 11.6 | | 26.4 | 21.0 | 91 | 60 | 9.87 | 20.69 |
| 20/01/2026 | 4.4 | 6.2 | | 24.6 | 19.3 | 96 | 59 | 8.40 | 17.59 |
| 21/01/2026 | 5.5 | 2.4 | | 27.7 | 17.8 | 87 | 60 | 5.74 | 25.42 |
| 22/01/2026 | 5.9 | 0.0 | | 28.6 | 20.7 | 90 | 64 | 5.30 | 28.48 |
| 23/01/2026 | 3.0 | 0.4 | | 25.9 | 22.8 | 90 | 70 | 7.50 | 6.66 |
| 24/01/2026 | 3.9 | 1.2 | | 27.9 | 20.4 | 95 | 72 | 4.97 | 17.49 |
| 25/01/2026 | 5.1 | 0.0 | | 27.7 | 21.3 | 95 | 78 | 6.79 | 29.09 |
| 26/01/2026 | 5.9 | 0.0 | | 30.7 | 24.5 | 95 | 74 | 6.94 | 29.27 |
| 27/01/2026 | 3.5 | 1.0 | | 26.3 | 21.5 | 97 | 64 | 7.13 | 11.21 |
| 28/01/2026 | 5.6 | 0.0 | | 26.5 | 20.8 | 74 | 60 | 6.90 | 21.44 |
| 29/01/2026 | 5.8 | 0.0 | | 26.4 | 22.1 | 79 | 64 | 8.53 | 24.26 |
| 30/01/2026 | 5.0 | 0.0 | | 26.5 | 22.5 | 85 | 69 | 7.08 | 21.90 |
| Totals: | 146.9 | 90.6 | | | | | | | |
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