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.

Closed season · Trout
Buzzer · 12–14
Closed season
Season reopens 1 April. Try elsewhere.
Closed — confidence not applicable today.

Lake Bohinj is often best in spring through autumn.

What moved it
  • WindN 8 km/hLight breeze
Today's fly
Buzzer
Buzzer12–14
Proven pattern for this period
Conditions on the water
Estimate
Wind
Light breeze
N 8 km/h
N
N
from the north
WaveRipple
Water temp9.8°C
Air temp0°C
CloudClear
Pressure1023 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
No strong hatch signals at the moment — general searching tactics should work best. 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. When no hatch is visible, a buzzer team — black stripped quill on the point, attractor or pearl-rib on the top dropper — is the default starting point on any UK stillwater.
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. When no hatch is visible, a buzzer team — black stripped quill on the point, attractor or pearl-rib on the top dropper — is the default starting point on any UK stillwater.

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 3 as a supporter.

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Through the year
0–3 scale · November 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
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
66%
Cloud25%
Wind100%
Temp60%

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

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

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.
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
At a glance

Lake Bohinj is a mountain lake in Upper Carniola / Bohinj, Slovenia. Its recorded elevation is about 526 m above sea level and the catchment geology is limestone. Our data lists brown trout, lake trout and char here. The trout season is recorded as running from 1 April to 30 September. The char season is recorded as running from 1 June to 31 October. Best window recorded for anglers: May–August; September–October. Core methods listed: Boat/drift fishing; Nymph drift; Small streamer. Level and flow data for this water is linked from 1 gauge. Its Water Framework Directive ecological status is recorded as good. Nearby waters in our listings include Lake Bled at 20 km, Jezero Jasna at 23 km and Moste Reservoir (Sava Dolinka) at 24 km.