Freestone · Limestone · Upper Carniola / Bohinj, SI

Sava Bohinjka

Sava Bohinjka fishing venue photo

The Bohinjka comes out of Lake Bohinj already moving with purpose, and it doesn't really slow down for the rest of its length — genuine speed, genuine clarity, the kind of water that makes you fish the seams rather than the whole run.

Marginal · Brown Trout
Elk Hair Caddis · 12-16
Marginallive now
Slow going — pick your moments
River temperature is the limiting factor today, not the flow. Fish dawn or dusk if you go at all, and handle everything with extra care.
80% confidence
What moved it
  • Level107.00 mDropping in the last 6h
  • Water temp18.1°C
  • ClarityClearingClearing
Today's fly
Elk Hair Caddis
Elk Hair Caddis12-16
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Falling
107.00 m
Dropping in the last 6h
Water temp18.1°C
ClarityClearing
Weather20°C
WindNW 3 km/h
Pressure1018 hPa
Rain · recent0.0 mm
Rain · ahead13.8 mm

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

Water temperature for Brown Trout
Warm — slow
18°C est.ideal 1016°C
0°14°28°
How to fish it · for Brown Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Water at 18.1°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayPeak at 6am

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water yet.

Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
Grayling seasonSeason
1
2
2
2
2
2
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Alpine RhithrogenaHatch
1
2
2
1
Large Dark OliveHatch
1
2
2
1

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

Ranked for today
Brown Trout fly box

Ultra-clear spring-fed rivers with large educated trout. Sight fishing, technical presentation, fine tippets. Euro-nymphing dominant subsurface method. Exceptional dry-fly windows during hatch periods. Gacka is the flagship water.

Permits & access
Permit required — see local rules.
  • Fishing licence + permit from ribiške družine
  • Barbless hooks on catch-and-release sections.
What's coming
Plan ahead
5-day outlook
Water here around 18°C. Nothing cooler within range — carry a thermometer.
Gallery · 7
  1. Bohinjska Bela
    Bohinjska Bela
  2. The Sava Bohinjka flowing through the Bohinj valley near the lake outflow, clear turquoise water with boulders.
    Sava Bohinjka near Lake Bohinj
  3. The Sava Bohinjka outflow from Lake Bohinj at Ribčev Laz, clear water between rocky banks.
    Sava Bohinjka outflow from Lake Bohinj
  4. The Sava Bohinjka near Bohinjska Bistrica, clear fast water over a rocky bed with forested hillsides.
    Sava Bohinjka near Bohinjska Bistrica
  5. The Sava Bohinjka flowing through a wide gravel-bed valley with alpine mountains behind.
    Sava Bohinjka toward Bohinjska Bela
  6. The Sava Bohinjka at Bodešče near Bled, clear-water river between wooded banks.
    Sava Bohinjka at Bodešče
  7. Terrain map of the venue
    Terrain map
About this water

The Bohinjka comes out of Lake Bohinj already moving with purpose, and it doesn't really slow down for the rest of its length — genuine speed, genuine clarity, the kind of water that makes you fish the seams rather than the whole run. Brown trout and marble trout hold the lower sections, grayling like the faster water, and rainbow trout turn up from historical stocking whether the river asked for them or not. The gorge section is the sort of spectacular that makes you stop wading for a minute just to look at it, which is time well spent even if it isn't technically fishing. Euro nymphing and dry-dropper both work in the broken water; neither is required reading, just useful.

Under the surface

The Bohinjka is a short, 41 km alpine river that begins where the Jezernica outflow from Lake Bohinj meets the Mostnica, and runs to the Sava Dolinka confluence at Radovljica around 411 m. The lake acts as a giant sediment trap and hydrograph smoother — the Bohinjka inherits far steadier flows than a rain-fed Julian Alps river of comparable size, and its clarity recovers within hours of a spate. Above Bohinjska Bistrica the channel runs as partly-confined pool-riffle and glide on limestone and dolomite cobble. Downstream it tightens into the Soteska gorge between Jelovica and Pokljuka — a confined bedrock and boulder step-pool cut where the river penetrates a limestone ridge. The bed is stable and well-armoured; the main wading hazard is polished, algae-slick bedrock in the gorge section.

Wading: Polished algae slick bedrock in the Soteska gorge

  • River
  • Limestone
  • Mixed
  • Pool riffle
  • Glide
Water quality (WFD)
  • EcologyModerate
  • ChemicalUnknown
What this classification means

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 · SI112VT7

The full read · show the working · for Brown Trout · confidence 80%
How the 39 is built — score × weight = contribution
Temperature54 × 28%15.1
Flow80 × 22%17.6
Clarity75 × 18%13.5
Feeding Time50 × 13%6.5
Pressure80 × 7%5.6
Insect activity56 × 12%6.7
Conditions total= 65
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
  • Trout 1 March30 September
  • Grayling 16 May30 November

    Slovenian common default: grayling 16 May – 30 November (lipan). Slovenia is permit and fishing district controlled — dates may vary by specific water. Always check the Ribiška Družina (fishing district) permit for the specific beat. The Soča, Idrijca, and Sava system hold world-class grayling alongside marble trout.

    Prime sport 1 September → 30 November

Related guides
Booking & contacts