Lowland · Mixed · Western Pomerania / Piła, PL

Gwda

Photo of Gwda
Poor · Brown Trout
Parachute Adams · 14-18
Poorlive now
Not the day for it
River temperature is the limiting factor today, not the flow. This is not the day to push it. Check the thermal advice above before you head out.
90% confidence
What moved it
  • Level205.00 mLifting fast
  • Water temp24.9°C
  • ClarityVery colouredColouring up
Today's fly
Parachute Adams
Parachute Adams14-18
Upstream dry
Conditions on the water
Live gauge
Level
Rising
205.00 m
Lifting fast
Water temp24.9°C
ClarityVery coloured
Weather30°C
WindS 9 km/h
Pressure1013 hPa
Rain · recent0.0 mm
Rain · ahead1.5 mm

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

Water temperature for Brown Trout
Welfare risk
25°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 24.9°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 4 active hatches hour by hour with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 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 · August 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
  • Stable lake-fed sections and local management rules matter more here than mountain-river assumptions, so check the exact beat before travelling.
What's coming
Plan ahead
5-day outlook
Water here around 25°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. Photo of Gwda
    Gwda
  2. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown
What this classification means

WFD ecological status Good → Moderate corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody PLRW6000181886583 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · PLRW6000181886583

The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature0 × 28%0.0
Flow30 × 22%6.6
Clarity15 × 18%2.7
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity32 × 12%3.8
Limiting factor: Water temperature (24.9°C) is outside Brown Trout's preferred range (10–16°C)= 26
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
A drop and clear would lift the flow and clarity scores.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 April → 30 September
  • Grayling 1 June → 28 February

    Polish PZW national rule: grayling (lipień) protected 1 March – 31 May. Open window 1 June – 28 February. PZW district and water-specific rules may add tighter restrictions. Carpathian rivers (San, Dunajec, Biała, Skawa, Raba) hold excellent grayling — check local Okręg PZW district permit for specific conditions.

    Closed in spring for spawning.

    Prime sport 1 September → 30 November

  • Pike 1 May → 31 December

    National pike protection period is 1 January–30 April. No district-specific override was found for this river in the available PZW Piła/Koszalin documents, but a river-name-specific line item wasn't directly confirmed either — treating the national baseline as the working default.

Related guides
Grayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts