Evapotranspiration Calculations
Perth Airport - June 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/06/2026 | 2.9 | 16.4 | 2.6 | 20.5 | 12.9 | 94 | 50 | 6.60 | 11.37 |
| 02/06/2026 | 2.3 | 2.2 | 1.6 | 19.6 | 11.5 | 97 | 49 | 4.30 | 10.68 |
| 03/06/2026 | 2.1 | 0.0 | 2.6 | 20.6 | 5.9 | 94 | 43 | 2.64 | 11.69 |
| 04/06/2026 | 2.3 | 0.0 | 1.6 | 19.1 | 8.2 | 88 | 40 | 3.30 | 12.17 |
| 05/06/2026 | 2.9 | 0.0 | 3.6 | 21.0 | 6.3 | 73 | 44 | 4.49 | 10.46 |
| 06/06/2026 | 2.1 | 0.0 | 1.0 | 23.4 | 9.0 | 94 | 54 | 2.72 | 12.09 |
| 07/06/2026 | 2.1 | 0.0 | 1.4 | 22.8 | 7.7 | 97 | 54 | 2.96 | 11.39 |
| 08/06/2026 | 2.3 | 4.4 | 1.0 | 21.3 | 12.8 | 97 | 61 | 6.40 | 7.59 |
| 09/06/2026 | 2.3 | 16.6 | 2.6 | 17.2 | 12.0 | 94 | 49 | 5.66 | 9.38 |
| 10/06/2026 | 1.9 | 0.2 | 2.0 | 18.7 | 8.4 | 90 | 54 | 3.51 | 8.49 |
| 11/06/2026 | 0.9 | 1.0 | 1.0 | 15.8 | 11.5 | 98 | 80 | 2.95 | 4.52 |
| 12/06/2026 | 1.8 | 13.2 | 1.8 | 16.7 | 11.5 | 98 | 53 | 3.87 | 10.21 |
| 13/06/2026 | 2.1 | 0.2 | 1.0 | 19.0 | 5.5 | 87 | 45 | 3.26 | 9.81 |
| 14/06/2026 | 2.2 | 0.0 | 1.2 | 21.0 | 9.9 | 97 | 51 | 3.86 | 8.47 |
| 15/06/2026 | 1.7 | 12.8 | 1.6 | 15.3 | 10.1 | 97 | 55 | 4.10 | 8.64 |
| 16/06/2026 | 1.6 | 3.2 | 1.2 | 15.8 | 1.0 | 97 | 54 | 3.34 | 11.25 |
| 17/06/2026 | 1.7 | 0.0 | 1.0 | 18.9 | 2.3 | 96 | 55 | 2.68 | 11.76 |
| 18/06/2026 | 1.5 | 0.0 | 1.2 | 17.3 | 1.3 | 96 | 50 | 2.14 | 11.85 |
| 19/06/2026 | 1.8 | 0.0 | 2.0 | 18.1 | 4.3 | 95 | 51 | 2.93 | 11.27 |
| 20/06/2026 | 1.9 | 0.0 | 1.4 | 16.1 | 9.1 | 79 | 57 | 4.14 | 7.65 |
| 21/06/2026 | 1.8 | 0.0 | 0.8 | 18.6 | 10.7 | 83 | 54 | 3.01 | 6.78 |
| 22/06/2026 | 1.9 | 0.2 | 1.0 | 22.6 | 12.1 | 93 | 41 | 2.00 | 10.30 |
| 23/06/2026 | 2.1 | 0.0 | 22.2 | 7.6 | 97 | 45 | 2.59 | 11.73 | |
| 24/06/2026 | 0.0 | 10.8 | 83 | 43 | 4.41 | 11.86 | |||
| 25/06/2026 | 0.0 | 21.9 | 74 | 38 | 4.20 | 11.89 | |||
| 26/06/2026 | 2.4 | 13.0 | 17.9 | 12.2 | 96 | 38 | 4.80 | 7.56 | |
| Totals: | 48.6 | 83.4 | 35.2 |
