Spate · Granite · Black Forest / Baden-Württemberg, DE

Große Wiese

Große Wiese venue image
Marginal · Brown Trout
Hare's Ear Nymph · 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
  • LevelProxyvia Doller
  • Water temp18.7°C
  • ClarityClear
Today's fly
Hare's Ear Nymph
Hare's Ear Nymph12-16
Upstream
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Doller
Water temp18.7°C
ClarityClear
Weather19°C
WindSW 17 km/h
Pressure1015 hPa
Rain · recent21.7 mm
Rain · ahead5.4 mm

No gauge on this water — conditions are inferred from Doller. The trend transfers, the absolute level does not.

Water temperature for Brown Trout
Warm — slow
19°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 18.7°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 11 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
Trout seasonSeason
1
2
2
2
2
2
1
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2
Large StoneflyHatch
2
3
2

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

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Black Forest
  • Fischereischein + Erlaubnisschein required.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 3
Water here around 19°C — probably warm enough to stress Brown Trout . These are likely cooler.
Wutach
41 km
~12°C
Brown trout · Grayling
Gutach
46 km
~12°C
Brown trout
Schluchsee
24 km
~13°C
Brown trout · Lake trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown

WFD classification · DERW_DEBW_21-04

The full read · show the working · for Brown Trout · confidence 80%
How the 36 is built — score × weight = contribution
Temperature29 × 28%8.1
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity63 × 12%7.6
Conditions total= 65
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Dollerproxy
Prey activitysurvey-backed invertebrate datasurvey
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
  • Trout 1 March → 30 September
Related guides
Euro Nymphingsubsurface methods
Booking & contacts