Thunder Bay on Lake Huron, where a shipwreck sanctuary doubles as structure — walleye through the bay in summer, lake trout on the reefs, and big pike in the shallow weedy south end.
Part of the Great Lakes region.
Biting right now — 8 species are worth targeting in September here, and the 5 marked Peak are at their best right now.
Tap any species for how to identify it, when it runs and what to throw. This is when the fish are active here — check the regulations below before you keep anything.
Alpena Harbor is on the northwest shore of Thunder Bay at the mouth of the Thunder Bay River. Alpena Light stands 44 feet above the water on a red skeleton tower with the upper part enclosed, on the north side of the river mouth; because of protective riprap it is not passed close aboard even by shallow-draft vessels.
Thunder Bay is a large bight on the west side of Lake Huron, 10 miles wide at the mouth between North Point and South Point, and it provides shelter in all but southeast weather with good holding ground generally near the shores. Thunder Bay Traffic Lighted Bell Buoy TB, 3 miles south of North Point, marks the entrance.
Thunder Bay National Marine Sanctuary covers 448 square nautical miles of northwest Lake Huron including the bay, protecting a collection of roughly 160 shipwrecks; many carry seasonal mooring buoys from April through October. The south part of the bay, from South Point northwest to Devils River, is filled with shoals and submerged rocks reaching 2.5 miles offshore, and a rocky ledge with a depth of 1 foot near its outer end runs about 0.6 mile north from Sulphur Island.
From Whitefish Point southeast for 5 miles to North Point the shore gives a good lee in northeast gales, with good holding ground close in over clay and sand in 25 to 30 feet — though that reach carries numerous submerged net stakes, a wreck covered 22 feet and a 21-foot spot south of Whitefish Point, and a 20-foot obstruction southwest of it. A shoal with a least depth of 5 feet near its outer end reaches 1.5 miles southeast from North Point and is buoyed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Walleye | ||||||||||||
| Yellow Perch | ||||||||||||
| Smallmouth Bass | ||||||||||||
| Northern Pike | ||||||||||||
| Steelhead | ||||||||||||
| Brown Trout |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Walleye | ||||||||||||
| Smallmouth Bass | ||||||||||||
| Lake Trout | ||||||||||||
| Coho Salmon | ||||||||||||
| Muskie | ||||||||||||
| Whitefish |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chinook Salmon | ||||||||||||
| Coho Salmon | ||||||||||||
| Lake Trout | ||||||||||||
| Walleye | ||||||||||||
| Yellow Perch | ||||||||||||
| Steelhead |
Gear links open Amazon searches. As an Amazon Associate, The Fishing Report earns from qualifying purchases — at no extra cost to you. Using these links helps keep the site ad-free.
Typical: 15–25 in, 1–5 lb
Tell it apart: The milky light-reflecting eye, large canine teeth, and white-tipped lower tail lobe separate a walleye from a yellow perch, which has a normal dark eye and no canines.
Easily confused with: Yellow Perch
Typical: 7–11 in, 0.3–0.8 lb
Tell it apart: Bold dark vertical bars over a yellow body, orange-tinted lower fins, a normal dark eye, and no canine teeth mark it as a perch, not a walleye.
Easily confused with: Walleye
Typical: 12–18 in, 1–4 lb
Tell it apart: A bronze body with vertical bars, a red eye, and an upper jaw ending no farther back than the rear of the eye confirms smallmouth (largemouth's jaw extends well past the eye and it shows a horizontal stripe, not bars).
Typical: 20–30 in, 2–8 lb
Tell it apart: Pike show LIGHT spots on a DARK background, a fully scaled cheek, and 5 or fewer jaw pores; muskie reverse it (dark marks on a light body, scaleless lower cheek) with 6-9 pores per side.
Easily confused with: Muskie
Typical: 24–30 in, 5–10 lb
Tell it apart: A white mouth AND white gums with spots radiating across the whole tail separate a steelhead from coho (dark mouth, white gums, spots on the upper tail lobe only) and chinook (black mouth and black gums).
Easily confused with: Brown Trout, Coho Salmon, Chinook Salmon
Typical: 16–26 in, 2–10 lb
Tell it apart: Red-orange spots with pale halos and a nearly spotless tail mark a brown trout; steelhead and the salmon carry black-only spots and a clearly spotted tail.
Easily confused with: Steelhead, Coho Salmon, Chinook Salmon
Typical: 24–32 in, 5–15 lb
Tell it apart: A deeply forked tail with pale haloless spots on a dark body identifies lake trout; browns and steelhead have squared tails, and brown trout add red/orange haloed spots. (Worm-like vermiculations belong to brook trout, NOT lake trout.)
Easily confused with: Brown Trout, Steelhead
Typical: 20–26 in, 4–8 lb
Tell it apart: Coho has a WHITE gum line (the reliable tell) with tail spots on the upper lobe only; Chinook has a black mouth WITH black gums and spots on both tail lobes; steelhead has a fully white mouth and gums.
Easily confused with: Chinook Salmon, Steelhead
Typical: 34–46 in, 12–30 lb
Tell it apart: Muskie show DARK markings on a LIGHT body, a scaleless lower cheek/gill cover, pointed tail tips, and 6-9 jaw pores per side, the reverse of pike (light spots on dark, scaled cheek, 5 or fewer pores, rounded tail tips).
Easily confused with: Northern Pike
Typical: 12–26 in, 2–4 lb
Tell it apart: A small downward-set toothless mouth under a blunt overhanging snout, large unspotted silvery scales, a deeply forked tail, and an adipose fin identify lake whitefish; the lack of teeth and spots rules out the trout and salmon.
Typical: 28–36 in, 15–25 lb
Tell it apart: An entirely black mouth INCLUDING the gum line, plus spots on both tail lobes, separates Chinook (king) from the white-gummed coho and the fully white-mouthed steelhead.
Easily confused with: Coho Salmon, Steelhead
The Great Lakes have no tides — plan around water temperature (the single biggest bite trigger), solunar windows, and wind direction; early morning and evening low-light windows consistently outperform midday regardless of season.
Bay City, MI · Bayfield, WI · Buffalo, NY · Chicago, IL · Cleveland, OH · Detroit, MI · Duluth, MN · Erie, PA · Frankfort, MI · Grand Haven, MI · Grand Marais, MN · Holland, MI · Kenosha, WI · Ludington, MI · Manistee, MI · Marquette, MI · Michigan City, IN · Milwaukee, WI · Muskegon, MI · Oswego, NY · Port Huron, MI · Portage, IN · Sandusky, OH · Sheboygan, WI · Sturgeon Bay, WI · Toledo, OH · Traverse City, MI · Two Harbors, MN · Waukegan, IL