Freestone · Limestone · Tyrol, AT

Inn

The Inn River in Innsbruck

The Inn is a large, often glacially-influenced river flowing through the heart of Tyrol.

Today · About as good as it gets
Stonefly Nymph
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
Stonefly Nymph
Stonefly Nymph
Conditions on the water · Today
Live gauge
Level
Steady
2.24 m
Rising in the last 6h
Water temp7.2°C
ClarityClear
Weather-1°C
WindN 3 km/h
Pressure1022 hPa
Rain · recent2.3 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 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
Good — water temperature is working for you, but time of day is the limiting factor today. Grayling feeds actively in cold water — peak winter sport.
Likely species
Mayflies
Stoneflies
Caddisflies
Gammarids
Hatch timeline · todayPeak at 11am

12pm(now) — Autumn Needle Fly

Stage: Creeping nymphsApproach: Heavy nymphActivity: 85%
Also:Autumn Olive28%Black Midge25%
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 4 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Supporters see what else is on the menu.

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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
1
Grayling seasonSeason
2
2
1
1
2
2
2
2
2
2
2
Alpine RhithrogenaHatch
2
3
3
2
Sculpin / Baitfish (Rivers)Hatch
2
3
3
3
3
3
3
3
2
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2

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

Ranked for today
Grayling 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.

Small Perdigón
Small Perdigón
Hook 14–18 · Fly
in season
Permits & access
Permit required — see local rules.
  • Tyrolean Inn river
  • Fischerkarte + water permit required; check local beat rules in the main stem and tributary valleys.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Leutascher Ache
22 km
Brown trout
Rißbach
23 km
Brown trout · Brook trout
Achensee
30 km
Brown trout · Lake trout · Char
Loisach — Hotel Bavaria Garmisch fly water
33 km
60
Brown trout · Rainbow trout · Grayling
Loisach
34 km
75
Brown trout · Grayling
Gallery · 2
  1. The Inn River in Innsbruck
  2. Terrain map of the venue
    Terrain map
About this water

Brown trout, rainbow, and grayling in the upper sections and tributaries. Summer melt colors the main stem, but the side valleys—the Zillertal, the Ötztal—hold crystal-clear water and responsive fish. Wading and bank fishing in varied terrain.

  • 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 11 m from the venue pin). Status: WISE 2022 (3rd RBMP) ecological class 3 = Moderate potential (heavily modified water body), chemical 'failing to achieve good' (Austria-wide in the 2022 cycle). Prior id ATOK307420002 (Good) described a different reach.

WFD classification · ATOK304980009

The full read · show the working · for Grayling · confidence 75%
How the 77 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time30 × 13%3.9
Pressure80 × 7%5.6
Insect activity54 × 12%6.5
Conditions total= 77
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 May → 30 September
  • 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
Grayling Playbookgrayling tacticsAlpine Streamsmountain entomologyEuro Nymphingsubsurface methods
Booking & contacts
At a glance

Inn is a freestone river in Tyrol, Austria. The catchment geology is recorded as limestone, and the water sits at about 575 m above sea level. The river is described as roughly 280 km long. Species listed for this water: brown trout, rainbow trout and grayling. The trout season is recorded as running from 1 May to 30 September. The grayling season is recorded as running from 16 May to 31 March. Best window recorded for anglers: April–September. Core methods listed: nymph; dry fly; streamer. Level and flow data for this water is linked from 1 gauge. Its Water Framework Directive ecological status is recorded as moderate. Nearby waters in our listings include Leutascher Ache at 22 km, Rißbach at 23 km and Achensee at 30 km.