Evapotranspiration Calculations
Perth Metro - November 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) |
|---|---|---|---|---|---|---|---|---|---|
| 29/10/2025 | 4.1 | 4.2 | 21.9 | 15.8 | 99 | 47 | 3.25 | 21.20 | |
| 30/10/2025 | 4.0 | 0.8 | 22.9 | 12.6 | 98 | 49 | 1.87 | 22.47 | |
| 31/10/2025 | 4.5 | 1.6 | 23.7 | 12.5 | 98 | 50 | 2.76 | 24.94 | |
| 01/11/2025 | 5.0 | 4.4 | 20.6 | 15.7 | 78 | 41 | 4.32 | 24.27 | |
| 02/11/2025 | 5.2 | 0.0 | 24.3 | 7.6 | 89 | 26 | 2.54 | 28.36 | |
| 03/11/2025 | 7.0 | 0.0 | 30.1 | 12.9 | 60 | 14 | 3.10 | 28.61 | |
| 04/11/2025 | 5.4 | 0.0 | 26.4 | 19.1 | 88 | 25 | 3.12 | 21.79 | |
| Totals: | 35.2 | 11.0 |
