Evapotranspiration Calculations

Perth Metro - August 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)
31/07/2026	2.2	0.0		22.9	6.2	99	32	1.65	14.18
01/08/2026	1.9	6.0		17.7	10.3	99	45	2.21	12.63
02/08/2026	1.8	0.0		17.5	4.6	98	45	1.60	14.29
03/08/2026	2.3	0.0		25.3	6.6	89	26	1.25	14.10
04/08/2026	1.9	9.0		20.0	12.7	99	48	1.43	13.59
05/08/2026	1.7	0.0		20.4	8.0	99	54	1.14	12.53
06/08/2026	1.8	0.0		20.3	6.1	99	52	1.57	12.71
Totals:	13.6	15.0

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