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

Kyll (Gerolstein / Upper Kyll)

Kyll (Gerolstein / Upper Kyll) — Sankt Thomas Brücke mit Nepomuk
Fair · Rainbow Trout
Hare's Ear Nymph · 12-16
Fairlive now
A side-water session, not the main event
River lifting fast on the rain. Take your time — read the water before you cast.
65% confidence
What moved it
  • LevelModerate rain recentlyNo gauge reading
  • Water temp16.2°C
  • ClarityVery coloured
Today's fly
Hare's Ear Nymph
Hare's Ear Nymph12-16
Upstream
Conditions on the water
Estimate
Level
Moderate rain recently
No gauge reading
Water temp16.2°C
ClarityVery coloured
Weather12°C
WindSW 14 km/h
Pressure1014 hPa
Rain · recent19.6 mm
Rain · ahead2.2 mm

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

Water temperature for Rainbow Trout
Ideal
16°C est.ideal 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
Good — water temperature is working for you, but insect activity is the limiting factor today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 2 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 4 guilds 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 plus local Erlaubnisschein required
  • Beat-specific rules are important on the Kyll.
What's coming
Plan ahead
5-day outlook
Fishing better nearby · 5
Kyll (Kyllburg)
21 km
79
Brown trout · Grayling · Rainbow trout
Holzwarche
38 km
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 Rainbow Trout · confidence 65%
How the 62 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow41 × 22%9.0
Clarity45 × 18%8.1
Feeding Time55 × 13%7.2
Pressure75 × 7%5.3
Insect activity34 × 12%4.1
Conditions total= 62
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