Large River · Glacial Till · Yukon, CA

Yukon River (upper, Whitehorse area)

Yukon River (upper, Whitehorse area) — Yukon River, Canada
Marginal · Arctic Grayling
Parachute Adams · 14–18
Marginallive now
Slow going — pick your moments
River high but settled. Slow going — pick your moments and do not force it.
50% confidence
What moved it
  • Level29.24 mLast reading 4h ago
  • Water temp1.0°C
  • ClarityClear
Today's fly
Parachute Adams
Parachute Adams14–18
Cast to rising fish and let it drift drag-free.
Conditions on the water
Live gauge
Level
Steady
29.24 m
Last reading 4h ago
Water temp1.0°C
ClarityClear
Weather-2°C
WindN 5 km/h
Pressure1023 hPa
Rain · recent0.0 mm
Rain · ahead0.5 mm

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

Water temperature for Arctic Grayling
Cool — slow
1°C est.ideal 4–14°C
0°14°28°
How to fish it · for Arctic Grayling
When
Midday window — grayling feed best from late morning into early afternoon.
Where
Work runs and glides — grayling shoal in the bottom third of the water column.
Method
Tight-line nymph the bottom third with weighted patterns.
Kit
10 ft #3 rod, floating line, long leader to 4 lb fluoro for nymphs.
Why this works
Poor — water clarity is working for you, but water temperature is the limiting factor today.
Likely species
Chironomids
Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
1
Brown DunHatch
2
3
3
3
3
3
3
2
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2
Mahogany DunHatch
2
2

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

Ranked for today
Fly box · Arctic Grayling
BH
Bead-head nymph
14–16 · Nymph
Search the runs and pockets, dead-drift near the bottom.
AL
Articulated leech (lakers)
12–16 · Fly
A dependable searching pattern for these waters.
PF
Pike fly (deceiver)
12–16 · Fly
A dependable searching pattern for these waters.
Permits & access
Permit required — see local rules.
  • Chinook CLOSED (Yukon River moratorium); grayling/laker/pike C&R/limits
  • Verify current Yukon regulations.
What's coming
Plan ahead
5-day outlook
Gallery · 2
  1. Yukon River (upper, Whitehorse area) — Yukon River, Canada
    Yukon River, Canada
  2. Terrain map of the venue
    Terrain map
Conservation note

Arctic grayling, lake trout and northern pike (C&R / limits). Yukon River CHINOOK SALMON are severely depressed and under moratorium/closure (Canada–US Yukon River Panel) — present in the system but NOT a fishing target; never scored as harvest. Clean-Drain-Dry.

The full read · show the working · for Arctic Grayling · confidence 50%
How the 26 is built — score × weight = contribution
Temperature13 × 28%3.6
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time25 × 13%3.3
Pressure80 × 7%5.6
Insect activity50 × 12%6.0
Limiting factor: Water temperature (1°C) is outside Arctic Grayling's preferred range (4–14°C)= 51
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Warmer water — toward the 4–14 °C ideal band — would lift the temperature score.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 June → 30 September
  • Coarse 1 January → 31 December

    No closed/spawning season for pike in Yukon — territorial regulations state most waters, including the Yukon River, are open year-round for all freshwater species except site-specific closures (none applicable to pike here).

Related guides
Euro Nymphingsubsurface methods
Booking & contacts