Chalk Stream · Limestone · Notranjska / Vrhnika

Ljubljanica

Ljubljanica — Ljubljanica river in Ljubljana
Prime · Grayling
F-fly · sizes_14_18
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
  • Level68.00 mLast reading 17h ago
  • Water temp13.1°C
  • ClarityClear
Today's fly
F-fly
F-flysizes_14_18
off-peak month · matches water height · regional default
Conditions on the water
Live gauge
Level
Steady
68.00 m
Last reading 17h ago
Water temp13.1°C
ClarityClear
Weather28°C
WindE 14 km/h
Pressure1021 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

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

Water temperature for Grayling
Ideal
13.1°Cideal 4–14°C
0°14°28°
How to fish it · for Grayling
When
Midday window — grayling feed best from late morning into early afternoon.
Where
Work runs and glides — grayling shoal in the bottom third of the water column.
Method
Tight-line nymph the bottom third with weighted patterns.
Kit
10 ft #3 rod, floating line, long leader to 4 lb fluoro for nymphs.
Why this works
Excellent — water temperature is right today, though insect activity could be better.
Likely species
Mayflies
  • Iron BlueMost likely
    #16–18 · Dun
    Cold, grey day — the dun sits long. Good dry-fly water.
  • Large dark oliveAlso possible
    #14–16 · Emerger
    Dead-drift the emerger — it's sitting in the film.
  • Anglers curse mayfliesAlso possibleLower confidence
    #20–22 · Spinner
    Go tiny: 20-22 spent spinner, single fly, long tippet.
  • Blue-winged oliveAlso possible
    #16–18 · Dun
    Duns are up; a sherry spinner fall may follow.
Caddisflies
  • Satin sedgeMost likelyLower confidence
    #12–14 · Egg-laying
    Skitter it at dusk — this one's fished, not dead-drifted.
  • GrannomAlso possible
    #14–16 · Pupa
    Pupa first, then dries as the adults come off.
  • Net-spinning caddis (S. Europe)Also possibleLower confidence
    #12–14–16 · Pupa
    Widespread riffle net-spinner; evening emergence.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 4 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 4 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
Brown SedgeHatch
2
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Blue Winged OliveHatch
2
3
3
3
3
2
Mayfly (Green Drake)Hatch
2
2

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

Ranked for today
Grayling fly box
Permits & access
Permit required — see local rules.
  • RD Vrhnika / RD Barje / RD Vevče
  • Huchen: separate €50 permit, mandatory guide (RD Vrhnika water).
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Ljubija
1.0 km
Brown trout · Grayling · Rainbow trout
Bistra
5.0 km
Brown trout · Grayling · Rainbow trout
Gradaščica
12 km
Brown trout · Grayling · Hucho
Iška
15 km
Brown trout · Grayling
Unica
16 km
Brown trout
Gallery · 2
  1. Ljubljanica — Ljubljanica river in Ljubljana
    Ljubljanica river in Ljubljana
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Grayling · confidence 90%
How the 87 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time100 × 13%13.0
Pressure80 × 7%5.6
Insect activity64 × 12%7.7
Conditions total= 87
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
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). Permit and fishing district controlled — dates may vary by specific water.

    Prime sport 1 September → 30 November

  • Hucho 31 October → 15 February
Related guides
Hucho / Danube Salmonspecialist apex-predator guideChalkstream Playbookchalk stream tacticsGrayling Playbookgrayling tactics
Booking & contacts