Freestone · Limestone · Upper Austria / Salzkammergut, AT

Traun

Traun — Traun Bruecke Hallstaettersee 01

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

Today · About as good as it gets
Gold-Ribbed Hare's Ear
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.
90% projected
Today's fly
Gold-Ribbed Hare's Ear
Gold-Ribbed Hare's Ear
Conditions on the water · Today
Estimate
Level
Dry recently
No gauge reading
Water temp12.3°C
ClarityClear
Weather15°C
WindN 9 km/h
Pressure1022 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

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

Water temperature for Brown Trout
Ideal
12°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 — conditions well-balanced, with water clarity particularly in your favour.
Likely species
Hatch timeline · todayPeak at 2pm

12pm(now) — Reed Smut

Stage: On emergersApproach: Emerger or dryActivity: 57%
Also:Autumn Olive49%Cinnamon Sedge39%
Peak emergence window11 food groups active

Peak activity at 2pm — Autumn Dun (Autumn Dun, 12 food groups active)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Supporters see what else is on the menu.

Start free trial

14-day free trial. Cancel anytime.

Evidence
Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

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
Grayling seasonSeason
2
2
1
1
2
2
2
2
2
2
2
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

A classic alpine trout and grayling box. Nymphs, dry flies and streamers all belong, with the season often starting later in alpine regions.

SS
Small Streamer
6-10 · Pattern
Swing
Permits & access
Permit required — see local rules.
  • Gmundner Traun, below the Traunsee outflow at Gmunden (Upper Austria)
  • An Upper Austrian fishing card (Oberösterreichische Fischerkarte) or guest fishing card is required, plus a permit for the specific stretch; some beats are private and expensive.
What's coming
Plan ahead
5-day outlook
Other water nearby · 4
Gallery · 2
  1. Traun — Traun Bruecke Hallstaettersee 01
    Traun Bruecke Hallstaettersee 01
  2. 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: Failing to achieve good
What this classification means

WFD re-coded 2026-09-14 after the pin audit: matched by point query against EEA WISE WFD2022_SurfaceWaterBody (the river water body whose line lies 3 m from the venue pin). Status: WISE 2022 (3rd RBMP) ecological class 3 = Moderate, chemical 'failing to achieve good' (Austria-wide in the 2022 cycle). Prior id ATOK402210000 (Moderate) described a different reach.

WFD classification · ATOK412100001

The full read · show the working · for Brown Trout · confidence 90%
How the 83 is built — score × weight = contribution
Temperature82 × 28%23.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time85 × 13%11.1
Pressure80 × 7%5.6
Insect activity76 × 12%9.1
Conditions total= 83
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
Seasons & zones
  • Trout 1 April → 15 October
  • Grayling 16 May → 31 March

    Austrian grayling (Äsche) rules are state and fishery specific. Common pattern: closed 1 January – 31 May (spawning protection); open from June. Individual fishery seasons often end October/November. Always check the local Fischereikarte and specific water permit. Salzburg-area waters commonly show 1 June or 16 May opener.

    Season dates are set at state or regional level — confirm the local rules.

    Prime sport 1 August → 31 October

Related guides
Booking & contacts