Spate · Mixed · Cumbria

River Cocker

No photos yet for this water.

The Cocker is a Lake District trout river — a Derwent tributary running from the Buttermere/Crummock Water valley through the Lorton Vale to join the Derwent at Cockermouth.

Species

A side-water session, not the main event

Low and clear — careful approach country. Long leader, small flies, slower casts.

55% confidence in this read
Water temperature for brown trout
Cool — slow
6°C est.ideal 1016°C
0°14°28°
Why this score · for brown trout
  • Temperature3328% weight
  • Flow6022% weight
  • Clarity9518% weight
  • Feeding Time4513% weight
  • Pressure807% weight
  • Prey Activity1912% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
5.8°C
Estimated
Clarity
Clear
Air temp
7°C
Wind
SW 14 km/h
Gentle breeze
Pressure
1005 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
10.6 mm
Moderate rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

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
Fair conditions. Clarity is favourable (95), Prey activity is weakest (19).
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2
Yellow SallyHatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Permits & access
Permit required — see local rules.
  • Penrith AA / private.
Directions
About this water

The Cocker is a Lake District trout river — a Derwent tributary running from the Buttermere/Crummock Water valley through the Lorton Vale to join the Derwent at Cockermouth. Lake-fed flows from Crummock give it some stability; lower freestone character. Wild brown trout, no salmon. Penrith Angling Association covers some water.

  • Mixed
Seasons & zones
  • Trout22 March → 30 September
Other water nearby · 5