Free Resource · Updated 2026
The complete fly hatch chart for California's legendary trout rivers. From the world-famous McCloud and spring-creek Fall River to the technical Hat Creek, wild Trinity, and high-elevation Truckee — select your river below for peak hatch timing, fly pattern recommendations, and current month highlights for 2026.
California offers some of the most diverse fly fishing in the country. The iconic spring creeks — Fall River and Hat Creek in the northern volcanic plateau — produce prolific Callibaetis and PMD hatches from late spring through summer, offering challenging technical fishing on wild rainbow trout in flat, gin-clear water. These rivers are productive for midges and Blue-Winged Olives nearly year-round.
The McCloud River and Trinity River see excellent Golden Stonefly hatches in June, followed by outstanding dry fly action with PMDs and Trico hatches in late summer. The Trinity's Salmonfly hatch in late May is one of the best big-stonefly events in California, while October Caddis on the McCloud and Trinity in fall is one of the most distinctive hatches of the year.
The Truckee River near Lake Tahoe fishes well with caddis and PMDs through summer and into fall. BWOs fish well on most California rivers from March through November, especially on overcast days. Use FlyFishFinder's live gauge data to ensure flows are fishable on your target water before making the drive.
See Live California River Conditions →FlyFishFinder combines hatch knowledge with live gauge alerts, Prime condition indicators, and real angler intel — so you show up on the right day, not the wrong one.
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