Evapotranspiration Calculations
Perth Metro - October 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) |
|---|---|---|---|---|---|---|---|---|---|
| 30/09/2026 | 2.9 | 13.6 | 19.1 | 11.9 | 99 | 47 | 2.63 | 15.28 | |
| 01/10/2026 | 3.7 | 0.0 | 20.9 | 10.0 | 90 | 38 | 2.27 | 21.03 | |
| 02/10/2026 | 4.6 | 0.0 | 24.1 | 7.8 | 92 | 28 | 2.77 | 23.69 | |
| 03/10/2026 | 4.5 | 0.0 | 25.4 | 8.1 | 95 | 30 | 2.38 | 23.85 | |
| 04/10/2026 | 3.9 | 0.0 | 21.9 | 11.1 | 99 | 48 | 2.55 | 23.60 | |
| 05/10/2026 | 3.4 | 0.0 | 22.8 | 9.6 | 99 | 50 | 1.89 | 19.82 | |
| 06/10/2026 | 4.5 | 0.0 | 28.2 | 10.2 | 99 | 33 | 2.07 | 22.39 | |
| Totals: | 27.5 | 13.6 |
