Stillwater · Granite · South West / Cornwall, GB-ENG

Colliford Lake

Colliford Lake venue image

Cornwall's largest reservoir at 370 hectares — a wild, exposed moorland water on Bodmin Moor.

Fair · Rainbow
Marabou Damsel · 8-12
Fairlive now
Good summer conditions for Colliford Lake
Useful ripple, fishable wave. Worth a session if the wind holds.
61% confidence
What moved it
  • WindN 23 km/hModerate breeze
Today's fly
Marabou Damsel
Marabou Damsel8-12
Retrieve, sub-surface
Conditions on the water
Live gauge
Wind
Moderate breeze
N 23 km/h
N
N
from the north
Wave40 cm chop
Water temp
Air temp21°C
CloudBroken
Pressure1019 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Rainbow
When
Conditions are not ideal but fishable at Colliford Lake.
Where
Start with Booby (8-10) on a fast strip on floating line or static on sinking. Midday in warm weather — switch to a fast-sink or Di-7 and fish boobies or blobs along the bottom. Rainbows respond to more active retrieves — try short strips between pauses.
The plan
Plan A

Start with Booby (8-10) on a fast strip on floating line or static on sinking. Midday in warm weather — switch to a fast-sink or Di-7 and fish boobies or blobs along the bottom. Rainbows respond to more active retrieves — try short strips between pauses.

Plan B

Fish early and late, try deeper during the heat of the day with a fast-sinking line.

Watch for

Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 5 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
Daphnia SwarmHatch
2
3
3
3
2
Daddy Long LegsHatch
2
3
2
Lake OliveHatch
2
3
3
3
3
3
2
Silverhorns & LonghornsHatch
1
2
2
2
1

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

Ranked for today
Rainbow fly box
What's coming
Plan ahead
5-day outlook
Condition match
63%
Cloud70%
Wind30%
Temp100%

A reasonable day here, though wind isn't quite in the sweet spot.

Other water nearby · 5
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Cornwall's largest reservoir at 370 hectares — a wild, exposed moorland water on Bodmin Moor. Bank fishing only (no boats). The granite-bowl water is clear and acidic; browns and rainbows are stocked. The exposed position means wind is a constant factor. Buzzer fishing from April; the reservoir's isolation gives genuine solitude. Managed by South West Lakes Trust.

  • Reservoir
  • Granite
Why this score
  • Wind conditions (windy) are not ideal for this water.
  • Temperature (moderate) is in the sweet spot for summer fishing.
  • Daddy Longlegs are in their seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 1 April30 September
Related guides
Casting instructors near here
Booking & contacts
Clubs & associations