Freestone · Limestone · Slovakia / Liptov–Turiec (Fatra ranges)

Váh (upper / Liptov)

Váh (upper / Liptov) — River Vah, Piestany, Slovakia

Slovakia's longest river and one of its most important fly-fishing systems.

Marginal · Brown Trout
Perdigón · 14-18
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
  • Level0.99 mLast reading 1d ago
  • Water temp19.5°C
  • ClarityClear
Today's fly
Perdigón
Perdigón14-18
Euro-nymph
Conditions on the water
Live gauge
Level
Steady
0.99 m
Last reading 1d ago
Water temp19.5°C
ClarityClear
Weather23°C
WindN 11 km/h
Pressure1027 hPa
Rain · recent0.0 mm
Rain · ahead0.0 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
20°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
Water at 19.5°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 5 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read 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
1
Grayling seasonSeason
1
2
2
2
2
2
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
1

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

Ranked for today
Brown Trout fly box

Broad mountain-river trout and grayling pack with brown trout at the centre, but room for rainbow and brook trout where present.

Permits & access
Permit required — see local rules.
  • State fishing licence/card (rybársky lístok) plus a local or SRZ-area permit for the specific waters
  • Guest access is possible through local associations and SRZ-linked structures, but exact permit format and duration should be checked water by water.
What's coming
Plan ahead
5-day outlook
Water here around 20°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. Váh (upper / Liptov) — River Vah, Piestany, Slovakia
    River Vah, Piestany, Slovakia
  2. Terrain map of the venue
    Terrain map
About this water

Slovakia's longest river and one of its most important fly-fishing systems. The upper Váh through Liptov and around Ružomberok is the prime salmonid section—brown trout and grayling in clear submontane water with good wading access. A 2017 World Championship venue. Some waters run under catch-and-release rules with barbless requirements. Technical nymphing and dry-fly fishing in the heart of the Czech-Slovak competition nymphing tradition.

  • Limestone
The full read · show the working · for Brown Trout · confidence 80%
How the 31 is built — score × weight = contribution
Temperature32 × 28%9.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time65 × 13%8.5
Pressure80 × 7%5.6
Insect activity64 × 12%7.7
Conditions total= 66
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
Apple MapsGoogle Maps
Seasons & zones
  • Trout 16 April → 30 September
  • Grayling 1 June → 31 December
Related guides
Grayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts