Freestone · Limestone · Primorska / Žaga (Italian border), SI

Učja

Učja venue image

A 6.

Today · About as good as it gets
Pheasant Tail Nymph (sz 18)
Forecast · Today
About as good as it gets
On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
75% projected
Today's fly
Pheasant Tail Nymph (sz 18)
Pheasant Tail Nymph (sz 18)
Conditions on the water · Today
Live gauge
Level
Falling
1.06 m
Dropping after lift
Water temp14.6°C
ClaritySlightly coloured
Weather17°C
WindN 8 km/h
Pressure1022 hPa
Rain · recent0.0 mm
Rain · ahead1.7 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
Ideal
15°C est.ideal 10–16°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
Excellent — water temperature is right today, though time of day could be better.
Likely species
Mayflies
Caddisflies
Stoneflies
Damselflies & dragonflies
Hatch timeline · todayPeak at 1pm

12pm(now) — Reed Smut

Stage: On emergersApproach: Emerger or dryActivity: 86%
Also:Pale Watery77%Cinnamon Sedge56%
Peak emergence window9 food groups active

Peak activity at 1pm — Pale Watery (Pale Watery, Degree-days at peak)

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 2 as a supporter.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

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
2
1
Evening SedgeHatch
2
3
3
3
2
Alpine RhithrogenaHatch
1
2
2
1
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
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.

SW
Streamer / Woolly BuggerTop
6-10 · Pattern
High-confidence seasonal pick
Permits & access
Permit required — see local rules.
  • RD Tolmin
  • Fly-only, barbless.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Upper Soča (Trenta)
9.0 km
Marble trout · Grayling · Rainbow trout
Bela (Breginj)
11 km
84
Marble trout · Brown trout
Nadiža
13 km
Marble trout · Marble brown hybrid trout · Grayling
Soča
16 km
Brown trout · Marble trout
Natisone
17 km
Brown trout · Marble trout · Grayling
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

A 6.1 km alpine tributary entering the Soča at Žaga, the Učja comes in from Italy through hard-access wilderness — the kind of beat you fish because you're willing to walk for it. Marble and brown trout hold the length, with rainbow and grayling lower down near the confluence. Cold, fast, and about as far from a roadside pull-in as this pack gets.

  • River
  • Limestone
The full read · show the working · for Brown Trout · confidence 75%
How the 82 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time50 × 13%6.5
Pressure80 × 7%5.6
Insect activity56 × 12%6.7
Conditions total= 82
Can you trust it?
Water temperatureair-to-water estimateestimated
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
  • Marble trout 1 April → 31 October
Related guides
Grayling Playbookgrayling tacticsAlpine Streamsmountain entomologyMarble TroutSoča system
Booking & contacts