Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Parker River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Parker River, the highest being situated at an altitude of ft, the .
The Parker River is a perennial river of the Corangamite catchment, located in The Otways region of the Australian state of Victoria.