BestTimeToFish / Best month / Roaring Fork River

Best month to fish the Roaring Fork River

Planning a trip to the Roaring Fork River, Colorado? Here's the month-by-month guide. The best months are September, October, August, July. Looking for the live flow instead? →

Month-by-month fishing quality

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F
M
A
M
J
J
A
S
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MonthFishingWhy
January Marginal Shoulder season; fishable, lower odds
February Marginal Shoulder season; fishable, lower odds
March Marginal Shoulder season; fishable, lower odds
April Marginal Shoulder season; fishable, lower odds
May No — runoff/off-season Spring runoff — high & off-color
June Marginal Shoulder season; fishable, lower odds
July Prime Settled flows + peak hatches
August Prime Settled flows + peak hatches
September Prime Settled flows + peak hatches
October Prime Settled flows + peak hatches
November Good Good flows; solid odds
December Marginal Shoulder season; fishable, lower odds

Why these months?

Two things decide your odds on the Roaring Fork River: flow and season. You need the river in its fishable-flow band — so a freestone in spring runoff is out no matter how good the hatch would be, while a dam-fed tailwater holds shape year-round. On top of that, the hatches and water temperatures line up best in September and October and August and July, which is why those months edge out the rest. The Roaring Fork River's season runs freestone — high in spring runoff; prime july–october.

The Roaring Fork runs 70 miles from Independence Pass through Aspen, Basalt and Carbondale to the Colorado at Glenwood Springs, gathering the Fryingpan and the Crystal on the way and growing from a pocket-water creek into a full drift-boat river. Most of it is Gold Medal water holding wild rainbows, browns and cutbows, and its early-July green drake hatch is one of the genuinely great dry-fly events in Colorado.

Where to fish the Roaring Fork River

Basalt down to Carbondale is the Gold Medal wade water and has less boat traffic; Carbondale to Glenwood Springs is the classic drift. The upper river above Aspen is small, fast pocket water for anglers on foot. Note that the Glenwood gage reads the whole river — the upstream reaches run far lower than the number here.

Guided trips & lodges to book

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Guided fly-fishing float trips on the Roaring Fork River

FishingBooker · guided trips · from $450

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Half-day walk & wade trips, Roaring Fork River

FishingBooker · guided trips · from $293

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Multi-day lodges & guided packages near the Roaring Fork River

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Know when the Roaring Fork River is fishing right

Flows and the bite shift week to week. Leave your email and we'll tell you when the Roaring Fork River hits its best window — time to book a guide for your dates.

This guide is built from each month’s typical flows and the long-run seasonal pattern of hatches and water temperature — it tells you when the odds are best, not what any single day will do. A day on the water is never guaranteed. Our method & sources.