Total streamflow across the Swan River was last observed at 467 cfs, and is expected to yield approximately 926 acre-ft of water today; about 75% of normal. Average streamflow for this time of year is 619 cfs, with recent peaks last observed on 2022-06-22 when daily discharge volume was observed at 7,050 cfs.

Maximum discharge along the river is currently at the Swan River Near Bigfork Mt reporting a streamflow rate of 467 cfs. This is also the highest stage along the Swan River, with a gauge stage of 2.26 ft at this location. This river is monitored from 2 different streamgauging stations along the Swan River, the highest being situated at an altitude of 3,081 ft, the Swan River Near Bigfork Mt.

The Swan River is a significant river in Western Australia, running approximately 65 kilometers from its source in the Perth Hills to the Indian Ocean. The river is historically significant to the Noongar people, who have occupied the area for thousands of years. The Swan River is also important to the city of Perth, providing drinking water to over 1 million people and supporting agricultural crops such as citrus and grapes. The river has several dams and reservoirs along its length, including the Mundaring Weir and the Walyunga National Park Dam. The river is also a popular recreational area, with activities such as swimming, boating, and fishing. However, the river has faced significant environmental challenges, including pollution and damage to its ecosystem.