Freestone · Limestone · Upper Austria / Salzkammergut

Traun

Traun venue image
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The Traun is one of those rivers that teaches you to slow down.

Marginal · Brown Trout
Pheasant Tail Nymph · 14-18
Marginallive now
Slow going — pick your moments
River dropping into shape after a lift. A short window. Take your time.
80% confidence
What moved it
  • LevelHeavy rain recentlyNo gauge reading
  • Water temp18.8°C
  • ClaritySlightly coloured
Today’s fly
Pheasant Tail Nymph
Pheasant Tail Nymph14-18
Upstream
Conditions on the water
Estimate
Level
Heavy rain recently
No gauge reading
Water temp18.8°C
ClaritySlightly coloured
Weather20°C
WindS 5 km/h
Pressure1016 hPa
Rain · recent36.7 mm
Rain · ahead35.1 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Water temperature for brown trout
Warm — slow
19°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 18.8°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots. Otherwise poor — water clarity is in the right range.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 2 active hatches hour by hour 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 · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
Grayling seasonSeason
2
2
1
1
2
2
2
2
2
2
2
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
Permits & access
Permit required — see local rules.
  • Upper Traun (Traunsteinsee area) — permit required; some beats are private and expensive
  • Contact Fischereiverein Bad Ischl for guidance.
What's coming
Plan ahead
5-day outlook
Water here around 19°C. Nothing cooler within range — carry a thermometer.
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

The Traun is one of those rivers that teaches you to slow down. Lake-fed limestone water flowing through the Salzkammergut, holding trophy brown trout and grayling of genuine quality. The Gmundner Traun below Traunsee is the working section—a bucket-list river where careful nymphing and selective dry fly work pay dividends.

  • Limestone
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown

WFD classification · ATOK402210000

The full read · show the working · for brown trout · confidence 80%
How the 35 is built — score × weight = contribution
Temperature42 × 28%11.8
Flow71 × 22%15.6
Clarity85 × 18%15.3
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity32 × 12%3.8
Conditions total= 57
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
  • Trout1 April → 15 October
  • Grayling16 May → 31 March
Related guides
Grayling Playbookgrayling tacticsAlpine Streamsmountain entomologyEuro Nymphingsubsurface methods
Booking & contacts