Spate · Mixed · Cumbria, GB-ENG

River Cocker

A tree-canopied stretch of the River Cocker in Cumbria, calm clear water flanked by dense green foliage.
Poor · Brown Trout
Pheasant Tail Nymph · 14-16
Poorlive now
Not the day for it
River dropping into shape after a lift. Not much stacked in your favour today. Worth an hour if you are nearby, not worth the special trip.
55% confidence
What moved it
  • Level0.32 mDropping after lift
  • Water temp16.2°C
  • ClarityUnfishableColouring up
Today's fly
Pheasant Tail Nymph
Pheasant Tail Nymph14-16
Upstream, sub-surface
Conditions on the water
Live gauge
Level
Steady
0.32 m
Dropping after lift
Water temp16.2°C
ClarityUnfishable
Weather14°C
WindN 11 km/h
Pressure1020 hPa
Rain · recent0.0 mm
Rain · ahead11.5 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
Warm — slow
16°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
Very poor — water temperature is working for you, but water clarity is the limiting factor today.
Hatch timeline · todayPeak at 6am

Hatch predictions

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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

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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 · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
Daddy Long LegsHatch
2
3
2
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2

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.
  • Penrith AA / private.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Ennerdale Water
15 km
Brown trout
River Ehen
18 km
Brown trout · Salmon · Sea trout
Ullswater
32 km
Brown trout
Annan
37 km
Brown trout · Salmon · Sea trout
River Eamont
40 km
Brown trout · Grayling
Gallery · 2
  1. A tree-canopied stretch of the River Cocker in Cumbria, calm clear water flanked by dense green foliage.
    River Cocker
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Brown Trout · confidence 55%
How the 0 is built — score × weight = contribution
Temperature95 × 28%26.6
Flow80 × 22%17.6
Clarity0 × 18%0.0
Feeding Time50 × 13%6.5
Pressure80 × 7%5.6
Insect activity49 × 12%5.9
Limiting factor: Water is unfishable — too coloured for Brown Trout= 62
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
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 22 March → 30 September
Related guides
Yorkshire & SpidersNorth Country methodsTrout Near Londonaccess guideEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts