Stillwater · Limestone · Tyrol, AT

Achensee

View across Achensee lake toward the snow-capped Karwendel mountains near Pertisau, Austria

Tyrol's largest lake, deep and cold and crystal-clear—the sort of stillwater that demands either a boat or knowledge of the right bank positions.

Fair · Trout
Hare's Ear Nymph · 12-16
Fairlive now
Good drifting conditions on Achensee
Water temperature is the limiting factor today, not the wave. Fish dawn or dusk if you go at all, and handle everything with extra care.
56% confidence
What moved it
  • WindE 5 km/hCalm
Today's fly
Hare's Ear Nymph
Hare's Ear Nymph12-16
Upstream
Conditions on the water
Estimate
Wind
Calm
E 5 km/h
N
E
from the east
WaveRipple
Water temp21.0°C
Air temp24°C
CloudClear
Pressure1021 hPa
Rain · recent0.0 mm

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

How to fish it · for Trout
When
The daddy longlegs are on. Wind-blown Terrestrials may also come into play as the day warms. The ripple is helpful — fish should move onto the feed and a slow-drifted team or single wet will cover water well.
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A

Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.

Plan B

If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.

Watch for

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

Boat — drift

A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 as a supporter.

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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
1
CaenisHatch
2
3
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Silverhorns & LonghornsHatch
2
3
3
3
2
Daddy Long LegsHatch
2
3
2

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

Ranked for today
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.
  • Tirol lake
  • Boat hire available locally
  • Fischerkarte + lake permit required
  • Check with Fischereiverein Achensee.
What's coming
Plan ahead
5-day outlook
Condition match
55%
Cloud25%
Wind100%
Temp25%

A reasonable day here, though temperature isn't quite in the sweet spot.

Cooler water nearby · 4
Water here around 21°C — probably warm enough to stress Trout . These are likely cooler.
Gallery · 2
  1. View across Achensee lake toward the snow-capped Karwendel mountains near Pertisau, Austria
    Achensee at Pertisau, Tyrol
  2. Terrain map of the venue
    Terrain map
About this water

Tyrol's largest lake, deep and cold and crystal-clear—the sort of stillwater that demands either a boat or knowledge of the right bank positions. Arctic char, lake trout, and brown trout. Local permits and methods matter; check before you fish.

  • Lake
  • Limestone
Water quality (WFD)
  • Ecology: Good
  • 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 lake water body). Status: WISE 2022 (3rd RBMP) ecological class 2 = Good potential (heavily modified water body), chemical 'failing to achieve good' (Austria-wide in the 2022 cycle). Prior id ATOK301930002 (Poor) described a different reach — a river code on a lake.

WFD classification · ATOK3500300

Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Daddy longlegs are in their seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 1 May → 30 September
  • Grayling not applicable → not applicable

    All grayling must be returned — retention is prohibited here.

  • Char 1 June → 30 September

    Seesaibling (Arctic char) — Achensee. Tyrolean lake-specific byelaw. Char feed actively near surface in summer. Spawning run October–November — season closes end of September to protect pre-spawning fish. Midges, small nymphs, dry flies in calm evenings. Check Fischereiverein Achensee permit.

  • Lake trout 1 May → 31 October
Related guides
Booking & contacts