Fishing Report

California

Diamond Lake Fishing Report

Last Updated: November 13, 2025

Get the latest Fishing Report, Weather Forecast, and Hydrology for Diamond Lake in California. Diamond Lake is located in the Lassen National Forest in California and is a popular fishing destination for anglers. Updated daily.

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The lake is home to rainbow trout, brown trout, and brook trout, making it a prime spot for fly fishing. Nearby activities include hiking, camping, and wildlife viewing. Fishing tips include using small spinners or fly fishing with a sinking line. The best time of year to visit Diamond Lake is from May to October, with average temperatures ranging from 50-80 degrees Fahrenheit.

Nearby Fishing

Area Streamflow Levels

Trinity R Ab Coffee C Nr Trinity Ctr Ca	106cfs
Rush C Nr Lewiston Ca	10cfs
Nf Trinity R A Helena Ca	47cfs
Trinity R A Lewiston Ca	300cfs
Trinity R Ab Nf Trinity R Nr Helena Ca	451cfs
Trinity R A Junction City Ca	358cfs