Lowland · Mixed · Kujavia-Pomerania / Bydgoszcz

Brda

Brda — The river Brda
Prime · Brown Trout
Perdigón · 14-18
Primelive now
About as good as it gets
River high but settled. Coloured water — fish bigger and deeper, confident takes down the seams.
75% confidence
What moved it
  • Level226.00 m
  • Water temp14.6°C
  • ClarityClear
Today's fly
Perdigón
Perdigón14-18
Euro-nymph
Conditions on the water
Live gauge
Level
Steady
226.00 m
Water temp14.6°C
ClarityClear
Weather13°C
WindE 3 km/h
Pressure1026 hPa
Rain · recent0.0 mm
Rain · ahead0.0 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
Ideal
15°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
Excellent — water temperature is working for you, but time of day is the limiting factor today.
Hatch timeline · todayPeak at 6am

Hatch predictions

Today's headline hatch shown — see all 10 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 3 guilds 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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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.
What's coming
Plan ahead
5-day outlook
Other water nearby · 1
Wda
48 km
0
Brown trout · Grayling
Gallery · 2
  1. Brda — The river Brda
    The river Brda
  2. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Good
  • Chemical: Failing to achieve good
What this classification means

WFD re-coded 2026-06-18: prior id PLRW20002156789 was a fabricated stub (no such code in EEA WISE). Re-mapped to PLRW200011292999 'Brda od Zb Smukala do Ujscia' — the lower reach through Bydgoszcz near the venue coordinate (53.1276, 18.1338). Status: EEA WISE 2022 (3rd RBMP). Confidence: medium — VERIFY: if the intended fishery is the upper no-kill fly reach in Bory Tucholskie (Koronowo/Świt), re-map upstream (e.g. PLRW2000112929739). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu).

WFD classification · PLRW200011292999

The full read · show the working · for Brown Trout · confidence 75%
How the 80 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity57 × 12%6.8
Conditions total= 80
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
What would change the calculation
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

Related guides
Grayling Playbookgrayling tacticsEuro Nymphingsubsurface methods
Booking & contacts