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Souris River (Saskatchewan) — a spot well known among anglers. About 420 km long. Flows into Assiniboine River, Lake Winnipeg basin. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.
The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably.
Best time — 06:00–08:00 (dawn bite) and 19:00–21:00 (dusk bite).
Work the cover — snags, weed edges, hole entrances; retrieve the lure with pauses.
In clear water, natural colors work best: spinner or fly.
No special gear needed — seasonal clothing will do.
Worth going — it's a productive day.
The computed water temperature is around 17 °C — warmer than the 7–16 °C comfort range for Brook trout: in the heat it drops deeper and feeds less often.
Brook trout works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.
Pressure is rising 3 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.
September is peak season for Brook trout here.
These are the same values the bite curve above was computed from. How the forecast works
Clear · feels like +22°
The day is 4 min shorter than yesterday.
Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.
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?Measured river conditions are available for Souris River: current gauge height, streamflow, and water temperature when reported by the source.
USGS gauge SOURIS RIVER BELOW RAFFERTY RESERVOIR, 32 km away · measured 2026-09-05 04:30 · data source · provisional data, subject to revision