Evapotranspiration Calculations
Brisbane - 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 | 6.2 | 2.0 | | 30.4 | 20.2 | 93 | 40 | 1.60 | 30.28 |
| 02/01/2026 | 3.3 | 0.2 | | 27.6 | 22.0 | 85 | 59 | 1.35 | 13.64 |
| 03/01/2026 | 4.3 | 0.0 | | 28.2 | 20.4 | 89 | 61 | 1.72 | 20.28 |
| 04/01/2026 | 5.5 | 0.2 | | 30.9 | 22.6 | 81 | 51 | 1.44 | 25.67 |
| 05/01/2026 | 5.2 | 0.0 | | 30.3 | 23.7 | 74 | 50 | 1.58 | 23.01 |
| 06/01/2026 | 5.3 | 0.6 | | 30.6 | 20.4 | 85 | 49 | 1.89 | 24.18 |
| 07/01/2026 | 6.2 | 1.0 | | 30.3 | 21.1 | 86 | 41 | 2.19 | 28.76 |
| 08/01/2026 | 5.7 | 0.6 | | 30.3 | 21.0 | 94 | 47 | 2.07 | 26.85 |
| 09/01/2026 | 6.1 | 0.2 | | 29.9 | 19.9 | 84 | 47 | 2.48 | 28.26 |
| 10/01/2026 | 5.8 | 0.6 | | 31.3 | 21.9 | 95 | 54 | 2.19 | 27.18 |
| 11/01/2026 | 4.8 | 0.8 | | 32.1 | 24.4 | 89 | 54 | 1.43 | 20.55 |
| 12/01/2026 | 3.0 | 0.2 | | 28.2 | 24.6 | 94 | 60 | 2.24 | 10.34 |
| 13/01/2026 | 4.7 | 6.2 | | 31.3 | 22.3 | 92 | 52 | 1.70 | 20.35 |
| 14/01/2026 | 6.5 | 0.2 | | 31.8 | 22.5 | 86 | 45 | 2.38 | 29.26 |
| 15/01/2026 | 6.0 | 0.0 | | 31.5 | 21.7 | 82 | 51 | 2.13 | 27.32 |
| 16/01/2026 | 5.3 | 0.0 | | 32.5 | 23.6 | 91 | 56 | 1.55 | 23.48 |
| 17/01/2026 | 4.8 | 0.0 | | 33.4 | 26.1 | 94 | 55 | 1.85 | 19.25 |
| 18/01/2026 | 3.7 | 4.8 | | 30.1 | 23.9 | 96 | 67 | 1.82 | 15.68 |
| 19/01/2026 | 5.1 | 33.2 | | 29.1 | 22.0 | 84 | 55 | 2.64 | 22.11 |
| 20/01/2026 | | 0.2 | | | 19.8 | 79 | 50 | 2.12 | 24.26 |
| 21/01/2026 | 5.1 | | | 29.1 | 19.1 | 81 | 47 | 1.61 | 24.50 |
| 22/01/2026 | | 0.0 | | | 21.3 | 81 | 46 | 1.48 | 28.77 |
| 23/01/2026 | | 0.0 | | 28.7 | | 83 | 58 | 2.39 | 12.50 |
| 24/01/2026 | 5.0 | 0.0 | | 30.0 | 23.0 | 80 | 58 | 1.88 | 22.57 |
| 25/01/2026 | 6.4 | 0.0 | | 33.5 | 24.4 | 95 | 53 | 2.02 | 28.97 |
| 26/01/2026 | 6.8 | 21.0 | | 37.1 | 20.9 | 93 | 40 | 1.52 | 30.09 |
| 27/01/2026 | 3.8 | 0.0 | | 29.5 | 25.4 | 82 | 61 | 2.28 | 14.19 |
| 28/01/2026 | 6.3 | 0.0 | | 30.7 | 21.9 | 70 | 45 | 2.09 | 29.31 |
| 29/01/2026 | 6.3 | 0.0 | | 30.5 | 21.6 | 71 | 46 | 2.96 | 26.67 |
| 30/01/2026 | 5.3 | 0.0 | | 30.2 | 21.6 | 77 | 48 | 2.36 | 22.09 |
| Totals: | 142.5 | 72.0 | | | | | | | |
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