Evapotranspiration Calculations
Wynyard Airport - April 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) |
| 01/04/2026 | 1.6 | 0.0 | | 20.2 | 10.3 | 100 | 73 | 2.75 | 7.46 |
| 02/04/2026 | 2.0 | 3.0 | | 20.4 | 7.7 | 100 | 70 | 4.02 | 11.02 |
| 03/04/2026 | 3.2 | 0.6 | | 17.0 | 6.2 | 91 | 32 | 4.86 | 15.46 |
| 04/04/2026 | 2.5 | 0.0 | | 17.2 | 1.4 | 99 | 45 | 3.65 | 14.97 |
| 05/04/2026 | | 0.0 | | | 7.3 | 78 | 65 | 6.73 | 11.75 |
| 06/04/2026 | 2.0 | 0.0 | | 19.2 | 13.7 | 99 | 64 | 5.96 | 6.38 |
| 07/04/2026 | 2.7 | 25.6 | | 19.2 | 10.9 | 100 | 48 | 4.72 | 12.98 |
| 08/04/2026 | 2.3 | 0.0 | | 16.5 | 4.2 | 99 | 44 | 3.05 | 13.80 |
| 09/04/2026 | 1.2 | 8.6 | | 18.5 | 4.2 | 100 | 80 | 5.31 | 3.68 |
| 10/04/2026 | 1.9 | 7.4 | | 14.5 | 6.7 | 99 | 61 | 6.08 | 8.79 |
| 11/04/2026 | 1.6 | 6.6 | | 13.1 | 4.4 | 98 | 67 | 6.59 | 8.05 |
| 12/04/2026 | 2.5 | 5.0 | | 14.8 | 6.2 | 89 | 51 | 6.71 | 11.65 |
| 13/04/2026 | 2.4 | 0.0 | | 17.7 | 8.3 | 99 | 55 | 6.05 | 10.02 |
| 14/04/2026 | 1.9 | 0.0 | | 18.2 | 4.8 | 100 | 66 | 5.35 | 10.39 |
| 15/04/2026 | 2.1 | 0.4 | | 16.9 | 2.7 | 100 | 52 | 4.09 | 11.64 |
| 16/04/2026 | 1.4 | 4.2 | | 17.8 | 6.4 | 100 | 76 | 5.59 | 5.02 |
| 17/04/2026 | 2.6 | 2.6 | | 15.5 | 7.6 | 88 | 51 | 7.08 | 11.84 |
| 18/04/2026 | 2.3 | 0.0 | | 16.4 | 7.4 | 96 | 45 | 4.20 | 12.77 |
| 19/04/2026 | 1.4 | 0.0 | | 15.5 | 0.7 | 99 | 65 | 2.62 | 10.49 |
| 20/04/2026 | 1.1 | 0.0 | | 16.2 | 8.1 | 100 | 76 | 2.34 | 6.20 |
| 21/04/2026 | 1.7 | 0.0 | | 17.6 | 8.8 | 100 | 69 | 5.84 | 8.46 |
| 22/04/2026 | 1.6 | 0.0 | | 17.3 | 15.0 | 97 | 73 | 5.99 | 6.73 |
| 23/04/2026 | 1.3 | 0.8 | | 18.5 | 13.4 | 99 | 84 | 4.05 | 9.09 |
| 24/04/2026 | 1.2 | 0.0 | | 18.3 | 9.4 | 100 | 81 | 2.44 | 10.00 |
| 25/04/2026 | 1.2 | 0.0 | | 18.4 | 5.8 | 100 | 83 | 2.37 | 11.82 |
| 26/04/2026 | 1.3 | 0.0 | | 19.4 | 6.2 | 100 | 75 | 2.99 | 8.36 |
| Totals: | 47.0 | 64.8 | | | | | | | |
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