Freestone · Limestone · Bavaria / Chiemgau, DE

Traun (Bavaria)

Weisse Traun in Siegsdorf-2

The Deutsche Traun — flagship Bavarian trout and grayling river.

Tomorrow · About as good as it gets
Czech Nymph
Forecast · Tomorrow
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
Czech Nymph
Czech Nymph
Conditions on the water · Tomorrow
Estimate
Level
Moderate rain recently
No gauge reading
Water temp6.9°C
ClarityClear
Weather3°C
WindN 4 km/h
Pressure1015 hPa
Rain · recent16.1 mm
Rain · ahead6.1 mm

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

Water temperature for Grayling
Ideal
7°C est.ideal 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. Grayling feeds actively in cold water — peak winter sport.
Likely species
Gammarids
Hatch timeline · tomorrowPeak at 11am

12pm(now) — Autumn Needle Fly

Stage: Creeping nymphsApproach: Heavy nymphActivity: 33%
Also:Black Midge29%Autumn Olive25%
Peak emergence window5 food groups active

Peak activity at 11am — Autumn Needle Fly (Autumn Needle Fly, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds as a supporter.

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Evidence
Survey-backed · regionalHigh confidence

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

Through the year
0–3 scale · November 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
2
1
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1

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

Ranked for today
Grayling fly box

Southern Germany only. Trout and grayling in Bavarian meadow streams, alpine creeks and famous upper-river systems.

Small Perdigón
Small Perdigón
Hook 14–18 · Fly
in season
Permits & access
Permit required — see local rules.
  • Upper Bavarian river
  • Fischereischein + Erlaubnisschein required
  • Some stretches private.
What's coming
Plan ahead
5-day outlook
Other water nearby · 3
Traun — Rudi Heger waters
< 1 km
84
Brown trout · Rainbow trout · Grayling
Förchensee
18 km
Brown trout · Rainbow trout · Char
Inn (Bavaria)
41 km
84
Brown trout · Grayling · Hucho
Gallery · 2
  1. Weisse Traun in Siegsdorf-2
  2. Terrain map of the venue
    Terrain map
About this water

Among the few Bavarian rivers where brown trout, rainbow trout and grayling still reproduce naturally. The Hochberg stretch is crystal-clear holding trout and grayling in premium alpine-river water. Established beat-style management with strong fish stocks. Excellent nymphing and dry fly with good hatches. Clear limestone water flowing from the Chiemsee lake district.

  • Limestone
Water quality (WFD)
  • Ecology: Good
  • Chemical: Unknown
What this classification means

WFD ecological status Moderate → Good corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody DERW_DEBY_1_F603 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · DERW_DEBY_1_F603

The full read · show the working · for Grayling · confidence 75%
How the 83 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity47 × 12%5.6
Conditions total= 83
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 March → 30 September
  • Grayling 1 May → 31 December

    Bavaria state rule: grayling (Äsche) closed 1 January – 30 April, minimum size 35 cm. Open season 1 May – 31 December. Individual fishery/Hegering may impose stricter rules or shorter access. Always check the specific permit (Fischereischein + Fischereiberechtigung). C&R recommended on classified trout/grayling waters.

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

    Prime sport 1 August → 30 November

  • Char varies_by_region → varies_by_region

    Alpine char (Saibling) — not a primary species on the Traun but may occur in cold upstream sections. Seasons and regulations are set by Bavaria's fishing authority (Fischereibehörde) and local water rights (Hegering/club). Verify char presence and regulations locally before targeting.

Related guides
Fly Fishing in Bavaria and the Black Forestfeatured in this guideGrayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts
At a glance

Traun (Bavaria) is a freestone river in Bavaria / Chiemgau, Germany. The catchment geology is recorded as limestone, and the water sits at about 581 m above sea level. The river is described as roughly 70 km long. Species listed for this water: brown trout, rainbow trout and grayling. The trout season is recorded as running from 1 March to 30 September. The grayling season is recorded as running from 1 May to 31 December. Best window recorded for anglers: April–September. Core methods listed: nymph fishing; dry fly; streamer in high water. Level and flow data for this water is linked from 1 gauge. Its Water Framework Directive ecological status is recorded as good. Nearby waters in our listings include Traun — Rudi Heger waters at < 1 km, Förchensee at 18 km and Inn (Bavaria) at 41 km.