Low Mountain Limestone · Eifel Limestone Volcanic · Eifel / Rheinland-Pfalz, DE

Kyll (Gerolstein / Upper Kyll)

Kyll (Gerolstein / Upper Kyll) — Sankt Thomas Brücke mit Nepomuk
Prime · Grayling
Pink Grayling Bug · Hook 16
Primelive now
About as good as it gets
Low and clear — careful approach country. Take your time — read the water before you cast.
75% confidence
What moved it
  • Level0.09 mLast reading 3h ago
  • Water temp6.8°C
  • ClarityClear
Today's fly
Pink Grayling Bug
Pink Grayling BugHook 16
in season · matches water height · all-rounder
Conditions on the water
Live gauge
Level
Steady
0.09 m
Last reading 3h ago
Water temp6.8°C
ClarityClear
Weather10°C
WindS 15 km/h
Pressure1022 hPa
Rain · recent0.0 mm
Rain · ahead0.4 mm

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

Water temperature for Grayling
Ideal
7°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 — water temperature is working for you, but time of day is the limiting factor today. Grayling feeds actively in cold water — peak winter sport.
Likely species
Stoneflies
Gammarids
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 6 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

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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 local Erlaubnisschein required
  • Beat-specific rules are important on the Kyll.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Kyll (Kyllburg)
21 km
87
Brown trout · Grayling · Rainbow trout
Holzwarche
38 km
86
Brown trout · Grayling
Warche
39 km
Brown trout · Grayling
Lake Bütgenbach
39 km
Brown trout · Rainbow trout
Lake Robertville
46 km
Brown trout · Rainbow trout
Gallery · 2
  1. Kyll (Gerolstein / Upper Kyll) — Sankt Thomas Brücke mit Nepomuk
    Sankt Thomas Brücke mit Nepomuk
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Grayling · confidence 75%
How the 88 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time25 × 13%3.3
Pressure80 × 7%5.6
Insect activity48 × 12%5.8
Conditions total= 76
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout local permit calendar → local permit calendar
  • Grayling local permit calendar → local permit calendar

    Grayling rules are state and fishery specific. Verify local Kyll permits before targeting grayling.

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

Related guides
Grayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts