Evapotranspiration Calculations
Perth Airport - 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 | 3.4 | 10.8 | 20.1 | 12.2 | 98 | 48 | 3.99 | 16.94 | |
| 01/10/2026 | 3.7 | 0.8 | 21.3 | 8.0 | 94 | 38 | 3.20 | 18.98 | |
| 02/10/2026 | 5.5 | 0.0 | 23.8 | 10.3 | 75 | 31 | 5.20 | 23.51 | |
| 03/10/2026 | 5.2 | 0.0 | 25.9 | 8.5 | 92 | 27 | 3.69 | 23.44 | |
| 04/10/2026 | 4.1 | 0.0 | 21.9 | 8.0 | 98 | 44 | 3.39 | 23.51 | |
| 05/10/2026 | 3.8 | 0.0 | 23.5 | 7.8 | 97 | 46 | 3.31 | 19.34 | |
| 06/10/2026 | 5.7 | 0.0 | 29.1 | 8.9 | 95 | 31 | 3.99 | 22.95 | |
| Totals: | 31.4 | 11.6 |
