Evapotranspiration Calculations
Wynyard Airport - December 2025 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/12/2025 | 4.1 | 0.0 | 18.5 | 4.0 | 99 | 47 | 4.14 | 25.92 | |
| 02/12/2025 | 3.1 | 1.4 | 17.0 | 4.2 | 99 | 52 | 4.60 | 17.28 | |
| 03/12/2025 | 4.1 | 0.0 | 19.8 | 11.5 | 99 | 56 | 6.18 | 23.70 | |
| 04/12/2025 | 6.0 | 0.0 | 25.5 | 10.2 | 99 | 32 | 5.89 | 24.60 | |
| 05/12/2025 | 4.3 | 0.0 | 18.4 | 5.9 | 92 | 57 | 5.21 | 29.72 | |
| 06/12/2025 | 3.0 | 0.0 | 18.6 | 7.0 | 99 | 61 | 5.59 | 15.33 | |
| 07/12/2025 | 4.9 | 1.8 | 18.4 | 5.4 | 92 | 36 | 6.30 | 28.17 | |
| 08/12/2025 | 1.9 | 3.2 | 16.0 | 10.0 | 100 | 73 | 6.98 | 9.11 | |
| 09/12/2025 | 5.7 | 6.8 | 19.7 | 10.0 | 91 | 34 | 7.35 | 30.92 | |
| 10/12/2025 | 5.4 | 0.0 | 21.1 | 3.4 | 99 | 34 | 5.12 | 31.02 | |
| 11/12/2025 | 4.5 | 0.0 | 17.9 | 3.8 | 98 | 45 | 3.50 | 31.91 | |
| 12/12/2025 | 3.5 | 0.0 | 19.4 | 11.4 | 97 | 67 | 7.05 | 21.38 | |
| 13/12/2025 | 6.3 | 0.0 | 25.1 | 12.3 | 99 | 27 | 4.96 | 28.74 | |
| 14/12/2025 | 4.4 | 0.8 | 16.4 | 10.7 | 95 | 46 | 9.83 | 26.21 | |
| 15/12/2025 | 4.7 | 4.4 | 16.9 | 6.7 | 86 | 40 | 8.15 | 26.14 | |
| 16/12/2025 | 5.6 | 0.0 | 22.9 | 9.1 | 89 | 43 | 4.74 | 31.00 | |
| 17/12/2025 | 4.8 | 0.0 | 19.9 | 5.8 | 99 | 47 | 3.59 | 31.52 | |
| 18/12/2025 | 2.5 | 0.0 | 20.1 | 8.0 | 100 | 65 | 1.93 | 13.57 | |
| Totals: | 78.8 | 18.4 |
