Freestone · Limestone · Bavaria / Upper Isar, DE

Isar — guest-angler stretches

Isar — guest-angler stretches — München - Isar
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.
90% projected
Today's fly
Czech Nymph
Czech Nymph
Conditions on the water · Tomorrow
Live gauge
Level
Steady
1.14 m
Water temp9.4°C
ClarityClear
Weather12°C
WindN 10 km/h
Pressure1031 hPa
Rain · recent0.2 mm
Rain · ahead0.0 mm

The nearest gauge is at München. It doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Grayling
Ideal
9°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 — conditions well-balanced, with water temperature particularly in your favour.
Likely species
Mayflies
Stoneflies
Caddisflies
Damselflies & dragonflies
Gammarids
Hatch timeline · tomorrowPeak at 13h

12h(now) — Autumn Olive

Stage: On emergersApproach: Emerger or dryActivity: 64%
Also:Autumn Needle Fly52%Black Midge48%
Peak emergence windowWeather boost10 food groups active

Peak activity at 13h — Iron Blue (Iron Blue, Weather boost)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 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 · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
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
Fly box · Grayling
Small Perdigón
Small Perdigón
Hook 14–18 · Fly
in season · matches water height
Permits & access
Permit required — see local rules.
  • Fischereischein plus guest-angler permit/day ticket required
  • Method and quota rules vary by stretch — confirm with the rights holder/guide before fishing.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Walchensee
5.0 km
Brown trout · Lake trout · Char
Rißbach
17 km
Brown trout · Brook trout
Loisach
26 km
Brown trout · Grayling
Upper Ammer
26 km
Brown trout · Grayling
Loisach — Hotel Bavaria Garmisch fly water
27 km
Brown trout · Rainbow trout · Grayling
Gallery · 2
  1. Isar — guest-angler stretches — München - Isar
    München - Isar
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Grayling · confidence 90%
How the 85 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time85 × 13%11.1
Pressure80 × 7%5.6
Insect activity66 × 12%7.9
Conditions total= 86
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 local Bavaria/fishery calendar → local Bavaria/fishery calendar
  • Grayling local fishery calendar plus Bavaria law → local fishery calendar plus Bavaria law

    Bavaria grayling rules (closed 1 Jan – 30 Apr, min 35 cm) plus stricter guest-stretch conditions where applied.

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

Related guides
Grayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts