Evapotranspiration Calculations
Perth Metro - April 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) |
|---|---|---|---|---|---|---|---|---|---|
| 28/03/2026 | 1.7 | 62.8 | 21.2 | 16.6 | 98 | 79 | 1.87 | 8.19 | |
| 29/03/2026 | 3.2 | 5.6 | 24.9 | 17.4 | 99 | 59 | 2.33 | 17.16 | |
| 30/03/2026 | 3.0 | 0.4 | 23.4 | 15.6 | 98 | 49 | 2.34 | 15.07 | |
| 31/03/2026 | 3.5 | 0.6 | 23.3 | 16.2 | 89 | 43 | 2.71 | 16.39 | |
| 01/04/2026 | 3.3 | 0.0 | 24.1 | 9.8 | 99 | 41 | 2.04 | 18.31 | |
| 02/04/2026 | 4.5 | 0.0 | 28.4 | 15.4 | 79 | 30 | 2.71 | 19.28 | |
| 03/04/2026 | 4.1 | 0.0 | 29.0 | 18.1 | 85 | 43 | 2.48 | 18.55 | |
| Totals: | 23.3 | 69.4 |
