Fall · September 8, 2026

Denver, Colorado

Prairies & Great Plains·Hardiness zone 5a

Now

30°C · Partly cloudy

Today

30° / 17°

Sun

06:34 – 19:19

Moon

Waning Crescent · solunar good

Fishing around Denver

AI field guide · refreshed weekly

Denver-Area Fishing: Early Fall on the South Platte & Mountain Lakes

What's biting

  • Brown Trout

    Where: South Platte River (downtown to Chatfield), mountain lakes above 2400 m (8000 ft)

    Fall turnover begins; fish deeper holes and undercut banks in the Platte. Mountain lakes cool rapidly—fish shallower structure early morning. Nymphs (Pheasant Tail, Hare's Ear) and small streamers work best.

    Caution: South Platte catch-and-release only in most sections; check CPW regs for your specific reach.

  • Rainbow Trout

    Where: Bear Creek, Clear Creek, Chatfield Reservoir, Bear Lake

    Cooler water temps (18–21°C) favor active feeding. Spin with small spinners or toss dry flies at dawn. Chatfield Reservoir: troll or cast from shore near dam and inlet.

    Caution: Chatfield has a 2-fish limit and size restrictions; verify current regs.

  • Walleye

    Where: Chatfield Reservoir, Cherry Creek Reservoir

    Early fall is prime; fish deeper structure (4–7 m / 13–23 ft) at dusk and dawn with live shiners, jigs, or crankbaits. Night fishing often productive.

    Caution: Reservoir-specific bag and size limits apply; check CPW before you go.

  • Largemouth Bass

    Where: Cherry Creek Reservoir, Chatfield Reservoir, Bear Lake

    Still active in warm shallows but moving to deeper drop-offs. Topwater early/late; switch to soft plastics and jigs mid-day. Weed edges and structure hold fish.

    Caution: Largemouth season and limits vary by water; confirm with CPW.

  • Kokanee Salmon

    Where: Mountain reservoirs (Elevenmile, Antero, Tarryall)

    Fall spawning run underway; fish deeper (6–12 m / 20–40 ft) with small spoons, jigging, or trolling. Early morning and late evening peak.

    Caution: Kokanee season and limits are time-sensitive; check CPW for current dates and closures.

Best times

Early morning (6–9 a.m.) and dusk (6–8 p.m.) as water cools; overcast days and calm mornings before wind picks up (forecast shows gusts to 24–30 km/h mid-week). New moon (Sept 11) may improve low-light feeding.

Waters to try

  • South Platte River (downtown to Chatfield), Chatfield Reservoir, Cherry Creek Reservoir, Bear Creek, Clear Creek, Bear Lake, Elevenmile Reservoir, Antero Reservoir, Tarryall Reservoir

Regulations

Colorado Parks & Wildlife sets all season dates, bag limits, size restrictions, and catch-and-release rules by water and species. Visit https://cpw.state.co.us/fishing or call (303) 291-7227 to confirm regs for your target water before fishing. South Platte sections near Denver are catch-and-release only; mountain reservoirs have variable limits.

Colorado Parks & Wildlife

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