Freestone · Granite · Ontario

Batchawana River

Batchawana River — Batchawana River
Marginal · Rainbow Trout
Elk Hair Caddis · 12-16
Marginallive now
Slow going — pick your moments
River high but settled. Slow going — pick your moments and do not force it.
90% confidence
What moved it
  • Level2.10 mLast reading 6h ago
  • Water temp19.7°C
  • ClarityClear
Today's fly
Elk Hair Caddis
Elk Hair Caddis12-16
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
2.10 m
Last reading 6h ago
Water temp19.7°C
ClarityClear
Weather21°C
WindNE 8 km/h
Pressure1021 hPa
Rain · recent0.0 mm
Rain · ahead18.1 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Rainbow Trout
Warm — slow
20°C est.ideal 10–18°C
0°14°28°
How to fish it · for Rainbow Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Water at 19.7°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 9 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water yet.

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
1
Early Black StoneflyHatch
2
3
2
Eastern Golden StoneHatch
2
2
Slate Drake / IsonychiaHatch
2
3
3
3
3
2
Yellow SallyHatch
1
2
1

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Rainbow Trout fly box
Permits & access
Permit required — see local rules.
  • FMZ seasons and sanctuary rules
  • Verify the current OFRS.
What's coming
Plan ahead
5-day outlook
Water here around 20°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. Batchawana River — Batchawana River
    Batchawana River
  2. Terrain map of the venue
    Terrain map
Conservation note

Lake Superior steelhead and Chinook (naturalised) with native wild brook trout; sanctuary/season rules apply. Clean-Drain-Dry.

The full read · show the working · for Rainbow Trout · confidence 90%
How the 29 is built — score × weight = contribution
Temperature51 × 28%14.3
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time65 × 13%8.5
Pressure75 × 7%5.3
Insect activity66 × 12%7.9
Conditions total= 69
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Cooler water — back toward the 10–18 °C ideal band — would lift the score and ease welfare.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout Last Saturday April → 30 September
Related guides
Euro Nymphingsubsurface methods
Booking & contacts