Evapotranspiration Calculations

Colac (Mount Gellibrand) - October 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)
30/09/2026	4.0	0.0		21.0	14.2	75	39	5.69	9.42
01/10/2026	1.3	2.4		14.8	13.3	100	77	3.95	5.47
02/10/2026	1.1	21.8		12.9	10.1	100	88	7.53	8.27
03/10/2026	0.9	16.0		12.6	10.8	100	89	11.85	6.75
04/10/2026	2.5	11.2		16.2	6.0	99	69	3.78	19.20
05/10/2026	2.2	0.2		15.2	6.3	95	73	2.53	15.71
06/10/2026	2.8	0.0		15.1	7.5	97	59	9.47	16.92
Totals:	14.8	51.6

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