Freestone · Limestone · Primorska / Julian Alps

Soča

Soča fishing venue photo
Prime · Brown Trout
Streamer / Woolly Bugger · 6-10
Primelive now
About as good as it gets
River high but settled. Coloured water — fish bigger and deeper, confident takes down the seams.
90% confidence
What moved it
  • Level79.00 mLast reading 6h ago
  • Water temp12.0°C
  • ClarityClear
Today's fly
SW
Streamer / Woolly Bugger6-10
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
79.00 m
Last reading 6h ago
Water temp12.0°C
ClarityClear
Weather27°C
WindSE 13 km/h
Pressure1024 hPa
Rain · recent1.8 mm
Rain · ahead0.0 mm

Live readings only. Trends shown where the gauge supports them.

Water temperature for Brown Trout
Ideal
12.0°Cideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Spring olives April through May; sedges through summer evenings. September and October are best — water cool, fish settled. July and August the water drops away, sometimes to nothing — patience required.
Where
The pool-riffle below Bovec on limestone cobble. Watch the inside of bends where slacker water collects fish in sight-distance. Avoid the gorge slots when wading — bedrock shelves and slot-depth steps trap the careless.
Method
Sight-fishing river — spot the fish first, plan the cast, present two or three feet upstream and let it come down. Dries on 5x or 6x in the hatch; small stoneflies and pheasant tails along the banks between hatches.
Kit
9 ft #4 — chalk-stream-style for the limestone clarity. Floating line, 12 ft tapered leader to 5x or 6x tippet. Wading staff and felted boots — polished limestone is a slip-trap.
Why this works
Excellent — water temperature is right today, though time of day could be better.
Likely species
Mayflies
  • Blue-winged oliveMost likely
    #16–18 · Dun
    Duns are up; a sherry spinner fall may follow.
  • Anglers curse mayfliesAlso possibleLower confidence
    #20–22 · Spinner
    Go tiny: 20-22 spent spinner, single fly, long tippet.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 12 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 3 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

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Evidence
ModelledModerate confidence

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

Updated 4 hours ago

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
Alpine RhithrogenaHatch
2
3
3
2
Sculpin / Baitfish (Rivers)Hatch
2
3
3
3
3
3
3
3
2
March BrownHatch
2
3
2
Large StoneflyHatch
2
3
2

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

Ranked for today
Brown Trout fly box
SW
Streamer / Woolly BuggerTop
6-10 · Pattern
High-confidence seasonal pick
Permits & access
Permit required — see local rules.
  • Fishing licence required
  • Marble trout: barbless hooks mandatory, catch-and-release primary rule
  • Brown trout: similar restrictions
  • Permits from ribiške družine (fishing families/clubs)
  • No live bait.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Tolminka
7.0 km
Marble trout · Marble brown hybrid trout · Brown trout
River Bača
8.0 km
Brown trout · Marble trout · Rainbow trout
Savica
8.0 km
Brown trout · Lake trout
Koritnica (Bača tributary, Rut)
10 km
Marble trout · Brown trout · Grayling
Mostnica
12 km
83
Marble trout · Brown trout
Gallery · 9
  1. Soča, Slovenia
    Soča, Slovenia
  2. Soča, Slovenia
    Soča, Slovenia
  3. Soča, Slovenia
    Soča, Slovenia
  4. Wide view of the emerald Soča river near Kamno in the Kobarid municipality, Slovenia.
    Soča near Kamno
  5. The emerald-green Soča river flowing through the valley near Kobarid, Slovenia.
    Soča at Kobarid
  6. The Soča river winding through the Trenta valley with Julian Alps peaks behind.
    Soča at Trenta
  7. The turquoise Soča at Čezsoča in the Bovec municipality, Slovenia.
    Soča at Čezsoča
  8. The Soča flowing through the dramatic Kobarid Gorge canyon, viewed from the Soča Trail.
    Kobarid Gorge, Soča
  9. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown
What this classification means

WFD ecological status High → Moderate corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody SI6VT157 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · SI6VT157

The full read · show the working · for Brown Trout · confidence 90%
How the 84 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity68 × 12%8.2
Conditions total= 84
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 March → 30 September
  • Grayling 16 May → 30 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

  • Marble trout 1 April → 31 October
Related guides
Alpine Streamsmountain entomologyMarble TroutSoča systemEuro Nymphingsubsurface methods
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