Evapotranspiration Calculations
Perth Metro - January 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/01/2026 | 8.1 | 0.0 | 37.3 | 17.1 | 73 | 10 | 2.66 | 29.58 | |
| 02/01/2026 | 8.7 | 0.0 | 37.2 | 22.2 | 66 | 16 | 3.03 | 31.43 | |
| 03/01/2026 | 7.6 | 0.0 | 32.7 | 22.3 | 83 | 31 | 3.16 | 31.68 | |
| 04/01/2026 | 7.3 | 0.0 | 32.5 | 20.2 | 87 | 26 | 2.68 | 31.64 | |
| 05/01/2026 | 7.2 | 31.3 | 19.5 | 83 | 33 | 3.01 | 31.61 | ||
| 06/01/2026 | 7.1 | 0.0 | 29.5 | 19.5 | 76 | 41 | 3.59 | 31.54 | |
| 07/01/2026 | 7.4 | 0.0 | 29.3 | 18.3 | 65 | 36 | 3.97 | 31.43 | |
| 08/01/2026 | 5.3 | 0.0 | 26.3 | 16.4 | 72 | 41 | 3.58 | 21.05 | |
| 09/01/2026 | 6.1 | 0.0 | 27.6 | 16.4 | 67 | 22 | 3.42 | 21.36 | |
| Totals: | 64.8 | 0.0 |
