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River Rivière Delisle (Ontario) — a popular fishing spot. About 37 km long. Flows into St. Lawrence River, Main stem Saint Lawrence River drainage basin. Here you'll find a bite prediction — when fish are active and which hours give the best chances, adjusted for weather and pressure.
Other nearby places to fish
Other nearby waters
The course meanders heavily: the current digs a pool on the outside of every bend and builds a bar on the inside. Those pools under the undercut bank are where pike typically sits.
Ontario: the months when each species peaks and when it goes quiet. The current month is outlined.
| Fish | January | February | March | April | May | June | July | August | September | October | November | December |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Black crappie | active | active | peak | peak | peak | active | fair | fair | active | active | active | active |
| Steelhead | peak | peak | peak | fair | fair | active | peak | peak | peak | active | peak | peak |
| Lake trout | peak | peak | peak | peak | active | fair | fair | slow | fair | active | active | peak |
| Whitefish | slow | slow | fair | active | peak | peak | active | active | peak | peak | active | fair |
| Atlantic salmon | slow | slow | fair | active | peak | peak | active | active | active | active | slow | slow |
| Pike | fair | fair | fair | fair | fair | active | active | active | peak | peak | peak | active |
| Rainbow trout | slow | slow | fair | active | peak | peak | active | active | active | active | slow | slow |
| Brook trout | slow | slow | slow | fair | peak | peak | active | active | peak | peak | fair | slow |
| Lake sturgeon | slow | slow | slow | fair | active | peak | active | active | peak | active | fair | slow |
| Largemouth bass | slow | slow | slow | fair | active | peak | peak | peak | peak | active | fair | slow |
| Muskellunge | slow | slow | slow | fair | active | peak | active | active | peak | peak | fair | slow |
| Sauger | slow | slow | slow | fair | active | peak | active | active | peak | peak | fair | slow |
| Walleye | slow | slow | slow | fair | active | peak | active | active | peak | peak | fair | slow |
| Yellow perch | slow | slow | slow | fair | active | peak | active | active | peak | active | fair | slow |
| Brown trout | slow | slow | slow | fair | peak | peak | peak | active | active | fair | slow | slow |
| Chinook salmon | slow | slow | slow | fair | active | peak | peak | peak | active | slow | slow | slow |
| Rainbow smelt | peak | peak | peak | peak | fair | slow | slow | slow | slow | slow | fair | active |
| Smallmouth bass | slow | slow | slow | fair | fair | active | active | active | peak | active | fair | slow |
| Burbot | active | fair | fair | slow | slow | slow | slow | slow | slow | active | peak | active |
| Carp | slow | slow | slow | slow | fair | active | peak | peak | active | slow | slow | slow |
| Channel catfish | slow | slow | slow | slow | fair | active | peak | peak | active | slow | slow | slow |
| Coho salmon | slow | slow | slow | slow | slow | fair | active | peak | peak | active | fair | slow |
Wednesday, October 21
Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses. The water's cold — fish it more delicately and slowly.
Rivière Delisle — Wednesday, October 21
The bite is moderate — fish feed in short bursts. Pressure is rising — activity tends to be more subdued. Peak 08:00–10:00 and 18:00–20:00.
The computed water temperature is around 8 °C — inside the 4–14 °C comfort range for Atlantic salmon, so baseline activity is high.
Atlantic salmon works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.
Pressure is rising 1 hPa over the day — the bite usually settles down after a rise.
One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.
October is an active season for Atlantic salmon here.
These are the same values the bite curve above was computed from. How the forecast works
Drizzle · feels like +7°
The day is 3 min shorter than yesterday.
Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.
Geomagnetic fieldquiet, Kp 3.7
Kp index — NOAA forecast. Not part of the bite score: catches show no link between geomagnetic storms and the bite.
The windows are set by the moon's transit and rise, and the forecast above already accounts for them: within these hours the bite score sits higher than across the rest of the day, while the day's overall level still comes from the catch-calibrated model.
What are solunar periods?Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses. The water's cold — fish it more delicately and slowly.
Rivière Delisle — Wednesday, October 21
The bite is moderate — fish feed in short bursts. Pressure is rising — activity tends to be more subdued. Peak 08:00–10:00 and 18:00–20:00.
Measured river conditions are available for Rivière Delisle: current gauge height, streamflow, and water temperature when reported by the source.
USGS gauge RIVIERE DELISLE NEAR ALEXANDRIA, 4 km away · measured 2026-10-21 13:55 · data source · provisional data, subject to revision