Updated October 15, 2026

    Sudbury River

    river in Massachusetts

    The Sudbury River offers diverse environments, from rocky stretches for smallmouth to slower, deeper pools and vegetated banks ideal for pike and carp. Its accessibility near metropolitan areas makes it a popular choice for local anglers seeking non-trout species on the fly.

    Conditions right now

    No USGS gauge is linked to this water yet, so we can't chart flows.

    Weather now
    61°F
    Overcast, wind 9 mph S
    Bite report · week of Oct 4

    What's working on Sudbury River

    1. 01Foggy conditions with air temperatures around 53°F on the Sudbury River.
    2. 02Midge activity (sizes 16-26) is paramount and a consistent food source.
    3. 03Intermittent Blue-Winged Olive (BWO) hatches (sizes 18-20) expected during overcast periods.
    4. 04Target Carp, Bluegill, and Pumpkinseed in deeper, slower sections with cover.
    5. 05Slow and meticulous presentation of subsurface patterns is crucial due to cooler water temperatures.

    Past reports week by week

    5 weeks

    What to tie on

    Picked from reports, hatches and the season. Tap a fly for the recipe and where else it works.

    dry

    Griffith's Gnat

    Midge cluster
    #18#20#22#24

    Midge activity is expected, and this pattern imitates midge clusters, effective for rising panfish.

    nymph

    Baetis Nymph

    Baetis (BWO) Nymph
    #16#18#20#22

    BWO nymphs are active subsurface during fall hatches, a primary food source for Bluegill and Pumpkinseed.

    nymph

    Zebra Midge

    Midge pupa (Chironomidae)
    #18#20#22#24

    Midges are a consistent fall food source; this nymph is effective for subsurface feeding Bluegill, Pumpkinseed, and Carp.

    Buy at Amazon
    nymph

    Scud (Pink/Orange)

    Freshwater amphipod (Gammarus)
    #12#14#16#18

    Scuds are a consistent food source year-round, especially in vegetated areas, appealing to Carp, Bluegill, and Pumpkinseed.

    Buy at Amazon
    dry

    Blue-Winged Olive Comparadun

    #18#20#22

    Matches expected fall BWO hatches for rising Bluegill and Pumpkinseed.

    streamer

    Woolly Bugger (Olive)

    #4#6#8

    Imitates leeches and baitfish, a consistent food source for predatory fish like bass and opportunistic panfish/carp in fall.

    nymph

    Carp Fly (Backstabber)

    Crayfish/invertebrate
    #4#6#8

    Crayfish and other invertebrates are still active subsurface in fall, a key food source for Carp.

    Buy at The Fly Shop
    nymph

    Hellgrammite Fly

    Hellgrammite (Dobsonfly larva)
    #4#6#8

    Hellgrammites are a consistent food source in rocky river environments, active in fall and appealing to Carp and larger Bluegill.

    Where to fish and who to ask

    Concord Outfitters · ConcordBig Bear Fishing Department · North SmithfieldTomo's Tackle · SalemMountain High Fly · New Hampshire1Fairhaven Bay2Great Meadows National Wildlife Refuge3Saxonville Dam Area
    AccessFly shop
    1

    Fairhaven Bay

    Expansive flat water with good structure for bass and pike.

    42.360°N 71.360°WUSGS 01103000Directions
    2

    Great Meadows National Wildlife Refuge

    Offers excellent access to varied water, particularly good for pike and carp.

    42.450°N 71.350°WUSGS 01103000Directions
    3

    Saxonville Dam Area

    Popular area with varied flows, often holding a mix of species.

    42.300°N 71.430°WUSGS 01103000Directions

    Fly shops within 40 miles

    9mi
    27mi

    Big Bear Fishing Department

    North Smithfield, RI
    29mi

    Tomo's Tackle

    Salem, MA
    30mi

    Mountain High Fly

    New Hampshire, NH

    Get Sudbury River reports by email

    Save this water and we'll email you a weekly summary of conditions, hatches and what's working.

    Massachusetts season by season

    What changes on the water through the year, with the flies for each season.

    Quick answers

    Common questions about Sudbury River.

    What flies work best on Sudbury River?

    Our top scored fly patterns for Sudbury River right now are San Juan Worm (80% confidence), Woolly Bugger (Olive) (80% confidence), Scud (Pink/Orange) (80% confidence). These picks are scored from recent fishing reports, hatch data, and seasonal patterns.

    What fish species are in Sudbury River?

    Sudbury River holds Carp, Bluegill, Pumpkinseed. See the species links on this page for fly recommendations and seasonal behavior for each.

    What are current flow conditions on Sudbury River?

    Live USGS streamflow readings for Sudbury River are charted in the sidebar of this page and updated automatically from the nearest gauge.

    Is Sudbury River fishing well right now?

    We publish a fresh bite report for Sudbury River each week based on recent on-the-water intel. The current report — with conditions, hatches, and what's producing — is on this page.