Evapotranspiration Calculations
Rolleston Airport - August 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) |
| 01/08/2026 | 3.2 | 0.0 | | 24.1 | 3.3 | 69 | 32 | 2.26 | 16.13 |
| 02/08/2026 | 3.2 | 0.0 | | 23.9 | 9.3 | 89 | 31 | 2.32 | 16.46 |
| 03/08/2026 | 3.2 | 0.0 | | 24.5 | 9.5 | 75 | 23 | 1.74 | 17.39 |
| 04/08/2026 | 2.7 | 0.0 | | 24.3 | 5.0 | 83 | 23 | 1.32 | 16.23 |
| 05/08/2026 | 2.9 | 0.0 | | 25.3 | 4.7 | 79 | 16 | 1.28 | 17.63 |
| 06/08/2026 | 3.0 | 0.0 | | 25.1 | 11.2 | 57 | 24 | 1.49 | 14.92 |
| 07/08/2026 | 3.7 | 0.0 | | 26.4 | 5.9 | 72 | 17 | 2.01 | 17.82 |
| 08/08/2026 | 3.3 | 0.0 | | 26.4 | 5.1 | 68 | 20 | 1.57 | 17.92 |
| 09/08/2026 | 4.5 | 0.0 | | 27.9 | 6.6 | 78 | 24 | 3.11 | 18.01 |
| 10/08/2026 | 4.3 | 0.0 | | 26.6 | 16.2 | 91 | 14 | 3.17 | 14.95 |
| 11/08/2026 | 3.1 | 0.0 | | 26.6 | 1.6 | 64 | 16 | 1.24 | 18.25 |
| 12/08/2026 | 4.6 | 0.0 | | 28.9 | 4.8 | 77 | 12 | 2.55 | 17.61 |
| 13/08/2026 | 4.0 | 0.0 | | 23.9 | 6.5 | 88 | 22 | 3.02 | 18.53 |
| 14/08/2026 | | 0.0 | | | 3.7 | 100 | 22 | 2.35 | 18.63 |
| 15/08/2026 | 3.6 | 0.0 | | 25.1 | 4.1 | 79 | 24 | 2.03 | 18.19 |
| 16/08/2026 | 4.0 | 0.0 | | 25.5 | 8.0 | 89 | 29 | 2.87 | 18.23 |
| 17/08/2026 | 3.9 | 0.0 | | 24.7 | 8.1 | 91 | 32 | 3.21 | 17.48 |
| 18/08/2026 | 3.8 | 0.0 | | 24.8 | 10.9 | 84 | 32 | 2.72 | 17.66 |
| 19/08/2026 | 4.0 | 0.0 | | 25.4 | 8.3 | 91 | 30 | 3.00 | 17.91 |
| 20/08/2026 | 3.6 | 0.0 | | 25.7 | 7.1 | 96 | 29 | 2.19 | 18.47 |
| 21/08/2026 | | 0.0 | | | 6.3 | 83 | 28 | 1.22 | 18.35 |
| 22/08/2026 | 2.8 | 0.0 | | 23.8 | 9.6 | 71 | 37 | 1.46 | 13.62 |
| 23/08/2026 | 4.0 | 0.0 | | 27.4 | 10.0 | 87 | 26 | 2.23 | 18.31 |
| 24/08/2026 | | 0.0 | | | 9.6 | 92 | 25 | 2.38 | 19.15 |
| 25/08/2026 | 3.0 | | | 27.5 | 11.9 | 97 | 38 | 1.59 | 13.69 |
| 26/08/2026 | 3.8 | 5.2 | | 27.6 | 14.9 | 100 | 30 | 1.83 | 19.14 |
| Totals: | 82.2 | 5.2 | | | | | | | |
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