Evapotranspiration Calculations
Wynyard 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 | 4.8 | 0.0 | 20.5 | 11.5 | 94 | 60 | 4.07 | 31.81 | |
| 02/01/2026 | 4.6 | 0.0 | 19.4 | 12.7 | 99 | 54 | 3.55 | 29.78 | |
| 03/01/2026 | 4.3 | 0.0 | 21.4 | 10.4 | 99 | 60 | 4.84 | 26.11 | |
| 04/01/2026 | 5.5 | 0.0 | 23.6 | 10.8 | 94 | 43 | 3.58 | 30.61 | |
| 05/01/2026 | 6.6 | 0.0 | 27.7 | 10.6 | 98 | 35 | 4.41 | 31.69 | |
| 06/01/2026 | 7.1 | 0.0 | 26.8 | 13.3 | 89 | 28 | 5.20 | 31.26 | |
| 07/01/2026 | 4.9 | 0.0 | 22.5 | 9.5 | 98 | 51 | 3.06 | 30.20 | |
| 08/01/2026 | 5.5 | 0.0 | 27.5 | 17.2 | 89 | 20 | 4.30 | 14.55 | |
| 09/01/2026 | 2.6 | 0.0 | 22.2 | 16.5 | 95 | 60 | 4.31 | 7.56 | |
| 10/01/2026 | 4.6 | 3.0 | 20.1 | 14.1 | 91 | 52 | 9.01 | 21.82 | |
| 11/01/2026 | 5.3 | 3.6 | 20.9 | 7.2 | 85 | 37 | 4.75 | 28.48 | |
| 12/01/2026 | 4.2 | 0.0 | 19.0 | 5.7 | 97 | 56 | 3.19 | 29.76 | |
| 13/01/2026 | 4.8 | 0.0 | 21.6 | 6.5 | 99 | 49 | 3.29 | 30.78 | |
| 14/01/2026 | 4.3 | 0.0 | 21.8 | 11.5 | 100 | 64 | 3.67 | 27.22 | |
| 15/01/2026 | 5.5 | 0.0 | 23.4 | 13.9 | 84 | 51 | 5.24 | 29.03 | |
| 16/01/2026 | 5.5 | 0.0 | 21.7 | 11.0 | 80 | 47 | 4.98 | 30.43 | |
| 17/01/2026 | 5.5 | 0.0 | 20.5 | 14.8 | 72 | 52 | 8.95 | 24.64 | |
| 18/01/2026 | 5.4 | 0.0 | 20.4 | 15.6 | 77 | 56 | 10.41 | 26.68 | |
| 19/01/2026 | 4.8 | 0.2 | 21.7 | 14.4 | 90 | 60 | 9.63 | 25.93 | |
| 20/01/2026 | 5.3 | 0.0 | 22.3 | 15.0 | 87 | 50 | 4.90 | 28.88 | |
| 21/01/2026 | 5.0 | 0.0 | 25.2 | 13.9 | 88 | 43 | 5.57 | 17.73 | |
| 22/01/2026 | 5.7 | 0.0 | 22.3 | 4.9 | 85 | 27 | 5.07 | 27.33 | |
| 23/01/2026 | 4.4 | 0.0 | 20.3 | 6.8 | 84 | 49 | 4.50 | 24.98 | |
| 24/01/2026 | 4.0 | 0.0 | 21.9 | 14.0 | 80 | 66 | 7.38 | 17.50 | |
| 25/01/2026 | 5.8 | 0.0 | 26.4 | 10.9 | 99 | 41 | 4.01 | 29.22 | |
| 26/01/2026 | 4.2 | 0.0 | 21.0 | 16.6 | 84 | 63 | 5.21 | 21.68 | |
| 27/01/2026 | 4.6 | 0.0 | 22.3 | 15.3 | 90 | 60 | 6.86 | 24.58 | |
| 28/01/2026 | 6.6 | 0.0 | 28.6 | 12.8 | 95 | 21 | 5.24 | 20.61 | |
| 29/01/2026 | 3.1 | 0.0 | 20.6 | 17.0 | 89 | 70 | 6.40 | 14.05 | |
| 30/01/2026 | 4.0 | 0.0 | 22.5 | 15.5 | 99 | 66 | 4.49 | 23.47 | |
| Totals: | 148.5 | 6.8 |
