Evapotranspiration Calculations
Perth Airport Comparison - 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 | 2.0 | 51.8 | | 21.4 | 16.8 | 96 | 72 | 3.83 | 7.52 |
| 29/03/2026 | 3.5 | 5.2 | | 25.1 | 17.7 | 97 | 58 | 3.98 | 16.18 |
| 30/03/2026 | 3.6 | 0.6 | | 23.8 | 15.8 | 96 | 46 | 4.69 | 13.98 |
| 31/03/2026 | | 1.8 | | | 15.8 | 92 | 41 | 4.96 | 12.59 |
| 01/04/2026 | | | | 24.7 | | 97 | 38 | 3.52 | 18.44 |
| 02/04/2026 | 6.3 | 0.0 | | 28.3 | 14.8 | 81 | 29 | 6.59 | 19.36 |
| 03/04/2026 | 5.5 | 0.0 | | 29.1 | 18.6 | 84 | 43 | 6.14 | 18.75 |
| Totals: | 20.9 | 59.4 | | | | | | | |
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