Evapotranspiration Calculations
Perth Airport - 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 | 4.0 | 2.6 | 7.8 | 22.3 | 14.0 | 93 | 51 | 5.28 | 16.65 |
| 30/10/2025 | 3.9 | 1.6 | 3.4 | 23.3 | 12.6 | 95 | 47 | 3.86 | 16.66 |
| 31/10/2025 | 5.0 | 0.2 | 4.2 | 24.2 | 10.6 | 95 | 45 | 5.42 | 23.05 |
| 01/11/2025 | 5.7 | 4.0 | 3.4 | 22.8 | 14.5 | 90 | 32 | 6.43 | 23.79 |
| 02/11/2025 | 6.4 | 0.2 | 6.2 | 25.8 | 9.6 | 87 | 22 | 4.51 | 28.17 |
| 03/11/2025 | 9.9 | 0.0 | 8.0 | 30.4 | 11.7 | 58 | 13 | 7.75 | 28.46 |
| 04/11/2025 | 7.3 | 0.0 | 11.6 | 27.2 | 18.9 | 88 | 23 | 8.12 | 21.12 |
| Totals: | 42.2 | 8.6 | 44.6 |
