Mountain Lake · Limestone · Upper Carniola / Bohinj, SI

Lake Bohinj

Aerial view of Lake Bohinj looking south, the whole glacial lake against the Julian Alps and Triglav.

Slovenia's biggest glacial lake, sitting at the head of the Bohinjka valley inside Triglav National Park, and about as good-looking a piece of water as this pack contains — crystal clear, ringed by peaks, the kind of setting that makes the fishing feel almost secondary.

Fair · Trout
Buzzer · 12-14
Fairlive now
Good drifting conditions on Lake Bohinj
Good wave on — drift country. A useful wave. Work the productive shore.
58% confidence

Lake Bohinj is often best in spring through autumn.

What moved it
  • WindNE 5 km/hCalm
Today's fly
Buzzer
Buzzer12-14
Proven pattern for this period
Conditions on the water
Estimate
Wind
Calm
NE 5 km/h
N
NE
from the north-east
WaveRipple
Water temp16.5°C
Air temp12°C
CloudClear
Pressure1027 hPa
Rain · recent0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

How to fish it · for Trout
When
The daddy longlegs are on. Terrestrials may also come into play as the day warms. The ripple is helpful — fish should move onto the feed and a slow-drifted team or single wet will cover water well.
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. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.
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. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.

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

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

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 as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 as a supporter.

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Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
1
CaenisHatch
2
3
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Silverhorns & LonghornsHatch
2
3
3
3
2
Daddy Long LegsHatch
2
3
2

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

Ranked for today
Trout fly box

Stillwaters exist and can be worth fishing, but this is a starter pack compared with the stronger Slovenian river identity.

Permits & access
Permit required — see local rules.
  • Fishing licence + permit
  • Boating with local guide recommended.
What's coming
Plan ahead
5-day outlook
Condition match
78%
Cloud25%
Wind100%
Temp100%

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

Other water nearby · 5
Gallery · 6
  1. Aerial view of Lake Bohinj looking south, the whole glacial lake against the Julian Alps and Triglav.
    Lake Bohinj from the air
  2. Boats and a wooden pier on Lake Bohinj at Ribčev Laz, mountain reflections on the calm water.
    Lake Bohinj at Ribčev Laz
  3. Panoramic view of Lake Bohinj from the shoreline near Stara Fužina, calm water, forested slopes and peaks.
    Lake Bohinj panorama
  4. Lake Bohinj on a clear day showing the open lake surface and surrounding alpine landscape.
    Lake Bohinj
  5. View of Lake Bohinj looking west from the Janez bridge at Ribčev Laz, the open lake and alpine peaks.
    Lake Bohinj from the Janez bridge
  6. Terrain map of the venue
    Terrain map
About this water

Slovenia's biggest glacial lake, sitting at the head of the Bohinjka valley inside Triglav National Park, and about as good-looking a piece of water as this pack contains — crystal clear, ringed by peaks, the kind of setting that makes the fishing feel almost secondary. It isn't, though: Arctic char, brown trout and lake-run trout are all present, fished from the south shore or by boat with a park licence. The char rules are strict and mean it — barbless hooks, catch-and-release, no exceptions — and given how precarious an alpine char population is, that's exactly how it should be.

  • Lake
  • Limestone
Water quality (WFD)
  • Ecology: Good
  • Chemical: Failing to achieve good
What this classification means

WFD re-coded 2026-06-18: Lake Bohinj was incorrectly sharing the Sava Bohinjka river's code SI112VT7. Re-mapped to its dedicated lake water body SI112VT3 'VTJ Bohinjsko jezero'. Status: EEA WISE 2022 (3rd RBMP). Source: discodata.eea.europa.eu. | Prior note: WFD ecological status Good → Moderate corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody SI112VT7 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · SI112VT3

Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Temperature (cool) is in the sweet spot for autumn fishing.
  • Daddy Longlegs are in their seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 1 April → 30 September
  • Char 1 June → 31 October

    Lake Bohinj arctic char — Slovenian alpine lake. Rules set by Ribiška Družina (fishing district) permit. Season broadly June–October, but check permit for specific dates. Alpine char often protected or restricted during autumn spawning.

  • Lake trout 1 June → 31 October

    Lake Bohinj lake trout — Slovenian alpine lake. Permit-controlled. Check Ribiška Družina rules for current season and bag limits.

Related guides
Booking & contacts