Lowland · Mixed · Kashubia / Gdańsk

Radunia

Radunia venue image
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Kashubian river flowing from the lake district to the Baltic near Gdańsk, grayling, brown trout, and sea trout in clear water with gravel substrate.

Good · Brown Trout
Perdigón · 14-18
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
90% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp17.0°C
  • ClarityClear
Today’s fly
Perdigón
Perdigón14-18
Euro-nymph
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp17.0°C
ClarityClear
Weather19°C
WindN 9 km/h
Pressure1024 hPa
Rain · recent0.0 mm
Rain · ahead2.3 mm

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

Water temperature for brown trout
Warm — slow
17°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
Good — water clarity is right today, though time of day could be better.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour with Pro.

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Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water yet.

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
1
Grayling seasonSeason
2
1
1
2
2
2
2
2
2
Terrestrial BeetlesHatch
2
3
3
2
Blue Winged OliveHatch
1
2
2
2
2
1
Black MidgeHatch
1
2
2
2
2
2
2
2
2
2
2
1
Summer River MidgeHatch
1
2
2
2
1

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.
  • Polish fishing card plus local permit required
  • Kashubian and coastal-river rules can vary by stretch, so check the exact local management area before planning around sea-trout possibilities.
What's coming
Plan ahead
5-day outlook
Other water nearby · 1
Reda
54 km
Brown trout · Sea trout · Grayling
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Kashubian river flowing from the lake district to the Baltic near Gdańsk, grayling, brown trout, and sea trout in clear water with gravel substrate. Included by the Grayling Society among northern Polish grayling rivers—a river with consistent character.

  • Mixed
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown

WFD classification · PLRW20001029845

The full read · show the working · for brown trout · confidence 90%
How the 76 is built — score × weight = contribution
Temperature77 × 28%21.6
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity60 × 12%7.2
Conditions total= 76
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout1 April → 30 September
  • Grayling1 June → 28 February
Related guides
Grayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts