Freestone · Limestone · Bavaria / Garmisch-Partenkirchen

Loisach

Photo of Loisach
Contributor photo

Loisach

-wuppertaler / Wikimedia Commons

One of Bavaria's best fly-fishing spots — high-quality trout and grayling water near Garmisch-Partenkirchen.

Marginal · Brown Trout
Elk Hair Caddis · 12-16
Marginallive now
Slow going — pick your moments
River temperature is the limiting factor today, not the flow. Fish dawn or dusk if you go at all, and handle everything with extra care.
80% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp19.6°C
  • ClarityClear
Today’s fly
Elk Hair Caddis
Elk Hair Caddis12-16
Upstream dry
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp19.6°C
ClarityClear
Weather25°C
WindNW 11 km/h
Pressure1018 hPa
Rain · recent1.4 mm
Rain · ahead13.4 mm

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

Water temperature for brown trout
Warm — slow
20°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 19.6°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 4 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 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
1
2
2
2
2
2
2
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
1

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

Ranked for today
Brown Trout fly box
SS
Small Streamer
6-10 · Pattern
Swing
Permits & access
Permit required — see local rules.
  • Upper Bavarian river
  • Fischereischein + Erlaubnisschein required.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 2
Water here around 20°C — probably warm enough to stress brown trout. These are likely cooler.
Upper Ammer
10 km
~16°C
Brown trout · Grayling
Loisach — Hotel Bavaria Garmisch fly water
1.0 km
~18°C
Brown trout · Rainbow trout · Grayling
Gallery · 2
  1. Photo of Loisach
    Loisach
  2. Terrain map of the venue
    Terrain map
About this water

One of Bavaria's best fly-fishing spots — high-quality trout and grayling water near Garmisch-Partenkirchen. Strict fly-only and removal rules. Clear alpine limestone water with a proper mountain feel. Access is tightly controlled through local fishing rights — enquire well in advance. A reminder that German access is often restrictive, but the quality justifies the effort.

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

WFD classification · DERW_DEBY_1_F391

The full read · show the working · for brown trout · confidence 80%
How the 30 is built — score × weight = contribution
Temperature30 × 28%8.4
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity64 × 12%7.7
Conditions total= 67
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.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout1 March → 30 September
  • Grayling1 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.

Related guides
Grayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts