Freestone · Limestone · Bavaria / Upper Isar, DE

Isar — guest-angler stretches

Isar — guest-angler stretches — München - Isar
Marginal · Rainbow Trout
Hare's Ear Nymph · 12-16
Marginallive now
Slow going — pick your moments
River steady at a fishable height. Slow going — pick your moments and do not force it.
80% confidence
What moved it
  • Level0.90 mLast reading 13h ago
  • Water temp20.4°C
  • ClarityClear
Today's fly
Hare's Ear Nymph
Hare's Ear Nymph12-16
Upstream
Conditions on the water
Live gauge
Level
Steady
0.90 m
Last reading 13h ago
Water temp20.4°C
ClarityClear
Weather16°C
WindNE 7 km/h
Pressure1017 hPa
Rain · recent3.8 mm
Rain · ahead3.4 mm

Live readings only. Trends shown where the gauge supports them.

Water temperature for Rainbow Trout
Warm — slow
20.4°Cideal 10–18°C
0°14°28°
How to fish it · for Rainbow 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 20.4°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayPeak at 6am

Hatch predictions

Today's headline hatch shown — see all 5 active hatches hour by hour with Pro.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 with Pro.

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Evidence
Survey-backed · regionalModerate confidence

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

Through the year
0–3 scale · August 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
Rainbow Trout fly box
Permits & access
Permit required — see local rules.
  • Fischereischein sowie Gastangler-Erlaubnis/Tageskarte erforderlich
  • Methoden- und Fangbegrenzungsregeln variieren je nach Abschnitt – vor dem Angeln beim Rechteinhaber/Guide erfragen.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 2
Water here at 20.4°C — the fishing's alive, but these are cooler if you'd rather rest the warm water.
Walchensee
5.0 km
~15°C
Brown trout · Lake trout · Char
Achensee
28 km
~20°C
Brown trout · Lake trout · Char
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 Rainbow Trout · confidence 80%
How the 25 is built — score × weight = contribution
Temperature22 × 28%6.2
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time80 × 13%10.4
Pressure75 × 7%5.3
Insect activity59 × 12%7.1
Limiting factor: Water temperature (20.4°C) is outside Rainbow Trout's preferred range (10–18°C)= 62
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 10–18 °C ideal band — would lift the score and ease welfare.
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