Stillwater · Volcanic · Honshū

Lake Towada / Oirase

Lake Towada from Ohanabe 2008

Lake Towada is a great twin caldera on the Aomori border, deep and blue, famous for the himemasu — landlocked kokanee — established here a century ago, and for the Oirase stream that pours from its lip through one of Japan's most beautiful mossy gorges.

Fair · White Spotted Char
Chironomid pupa / buzzer · 10–14
Fairlive now
Good drifting conditions on Lake Towada / Oirase
Good wave on — drift country. A useful wave. Work the productive shore.
51% confidence
What moved it
  • WindNW 9 km/hLight breeze
Today's fly
Chironomid pupa / buzzer
Chironomid pupa / buzzer10–14
Static or slow on a long leader — the staple stillwater chironomid.
Conditions on the water
Live gauge
Wind
Light breeze
NW 9 km/h
N
NW
from the north-west
WaveRipple
Water temp—
Air temp14°C
CloudClear
Pressure—
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for White Spotted Char
When
Spring and autumn
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

Top nymph shown — see all 2 guilds with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 5 with Pro.

Start free trial

14-day free trial. Cancel anytime.

Through the year
0–3 scale · August 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
White Spotted Char fly box
SF
Smelt-fry baitfish streamer
8–10 · Streamer
Strip it for fish chasing fry or in coloured water.
Permits & access
Permit required — see local rules.
  • Lake and stream rules differ; the Oirase runs through protected scenery
  • Confirm local permits and any closures.
What's coming
Plan ahead
5-day outlook
Condition match
78%
Cloud25%
Wind100%
Temp100%

A good match for Lake Towada / Oirase — most conditions are close to what it fishes best in.

Gallery · 2
  1. Lake Towada from Ohanabe 2008
    Caldera lake in Towada-Hachimantai National Park.
  2. Terrain map of the venue
    Terrain map
About this water

Lake Towada is a great twin caldera on the Aomori border, deep and blue, famous for the himemasu — landlocked kokanee — established here a century ago, and for the Oirase stream that pours from its lip through one of Japan's most beautiful mossy gorges. A lake of cliffs and clear depths, and a stream of waterfalls and autumn colour.

Under the surface

A deep blue twin-caldera lake on the Aomori uplands, draining through the mossy waterfall gorge of the Oirase. Himemasu introduced a century ago thrive in the cold depths, with char and trout along the shores; the Oirase below is moss, falls and turning leaves.

Wading: Deep cold caldera lake, steep cliffs — boat/shore

  • Lake
  • Volcanic
  • Stillwater
  • Drop off
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Temperature (cool) is in the sweet spot for summer fishing.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Char late February to April → late September to mid-October

    Honshu/Shikoku/Kyushu keiryu are managed by local fishery co-operatives — a yugyoken (day/annual ticket) is required, and most streams close around 30 September / mid-October for spawning. Species are surfaced in prose only (no engine slugs for yamame, amago or iwana). Legal status: guidance_not_permission.

Related guides
Thermal Layers & Troutreading depth and temperatureEuro Nymphingsubsurface methods
Booking & contacts