Stillwater · Volcanic · Hokkaido

Lake Shikotsu

Lake Shikotsu, Hokkaido; August 2021
Marginal · Trout
Chironomid pupa / buzzer · 12-18
A patient day, if you fancy it
Good wave on — drift country. Slow going — pick your moments and do not force it.
40% confidence
limited data
What moved it
  • WindSW 12 km/hGentle breeze
Today's fly
Chironomid pupa / buzzer
Chironomid pupa / buzzer12-18
High-confidence seasonal pick
Conditions on the water
Live gauge
Wind
Gentle breeze
SW 12 km/h
N
SW
from the south-west
Wave20 cm ripple
Water temp
Air temp19°C
CloudOvercast
Pressure
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
Spring and autumn; fishes year-round but cold windows are best
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A

Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.

Plan B

If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.

Watch for

Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.

Boat — drift

A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.

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 5 with Pro.

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Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Lake OliveHatch
1
2
2
2
2
2
1
Silverhorns & LonghornsHatch
1
2
2
2
1

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

Ranked for today
Trout fly box
SF
Smelt-fry baitfish streamer
4-8 · Pattern
Proven pattern for this period
Permits & access
Permit required — see local rules.
  • Local rules and any access charges apply; confirm the current water-specific rules.
What's coming
Plan ahead
5-day outlook
Condition match
59%
Cloud50%
Wind65%
Temp60%

A reasonable day here, though cloud isn't quite in the sweet spot.

Gallery · 2
  1. Lake Shikotsu, Hokkaido; August 2021
    Caldera lake in winter.
  2. Terrain map of the venue
    Terrain map
Why this score
  • summer conditions with overcast skies and breezy wind.
Directions
Seasons & zones
  • Char springlate autumn

    Hokkaido is largely open-access for inland trout/char, with managed/charged zones the exception (e.g. the Akan C&R water). Verify the exact reach. Species surfaced in prose only. Legal status: guidance_not_permission.

Related guides
Booking & contacts