Fall · September 8, 2026

Ottawa, Ontario

Great Lakes & St. Lawrence Lowlands·Hardiness zone 5a

Now

22°C · Partly cloudy

Today

23° / 15°

Sun

06:32 – 19:26

Moon

Waning Crescent · solunar good

Fishing around Ottawa

AI field guide · refreshed weekly

Ottawa Fall Fishing: September Transition

What's biting

  • Largemouth Bass

    Where: Shallow bays and weed edges of the Rideau River, Rideau Lake, and Ottawa River backwaters; look for remaining aquatic vegetation.

    Early fall is prime—bass feed aggressively before water cools. Use topwater plugs or soft plastics (4–5 inch) in low-light hours (dawn, dusk, overcast). Target structure: fallen trees, dock pilings, reed beds in 1–2 m (3–6 ft) of water.

  • Smallmouth Bass

    Where: Rocky shoals and drop-offs in the Rideau River, Ottawa River main channel, and deeper sections of Rideau Lake.

    Smallmouth are transitioning to deeper water as temps drop; fish rocky points and 3–5 m (10–16 ft) depths with tube jigs or crayfish-pattern soft plastics. Early morning and late afternoon are most productive.

  • Walleye

    Where: Rideau Lake main basin, Ottawa River channel, and deeper holes in the Rideau River; also Mooney's Bay.

    Walleye are beginning their fall movement to deeper structure. Fish live shiners or jigs tipped with minnows in 4–6 m (13–20 ft) of water, especially around dusk when they feed. Jigging vertically over structure is effective.

  • Northern Pike

    Where: Weed beds and shallower bays of Rideau Lake and Ottawa River backwaters; also Dow's Lake.

    Pike remain in shallow weeds through early September; use large spinnerbaits (size 4–5), crankbaits, or 6–8 inch soft plastics. Cast along weed edges and work slowly—pike are less aggressive as water cools.

  • Yellow Perch

    Where: Shallow bays and weed-lined shores of Rideau Lake, Ottawa River, and Mooney's Bay.

    Perch school in deeper water as fall progresses but are still accessible in shallows this week. Use small jigs (1/8–1/4 oz) tipped with live minnows or small shiners in 1–3 m (3–10 ft) depths; fish early morning and evening.

Best times

Early morning (6–8 a.m.) and late afternoon to dusk (5–8 p.m.) are most productive. Overcast conditions on September 9–10 will be excellent; avoid midday bright sun. The waning crescent moon favors low-light feeding.

Waters to try

  • Rideau Lake, Rideau River, Ottawa River (main channel and backwaters), Mooney's Bay, Dow's Lake, Kars Lake

Regulations

Check the Ontario Fishing Regulations Summary (https://www.ontario.ca/page/fishing-ontario) for current season status, bag limits, and size restrictions for each species. Regulations vary by water body and change annually. A valid Ontario fishing license is required.

Ontario Fishing Regulations Summary

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