Stillwater · Chalk · South / Hampshire

John O Gaunt's Fishery

John O Gaunt's Fishery terrain map

Two spring-fed fly-and-nymph-only lakes 200 yards from the River Test on the outskirts of King's Somborne, Test Valley, stocked with quality rainbow and brown trout and benefiting from the Test's natural fly life and mayfly hatch.

Fair · Rainbow
Buzzer · 12-14
A respectable few hours, if you choose your moments
Water temperature is the limiting factor today, not the wave. Fish dawn or dusk if you go at all, and handle everything with extra care.
48% confidence
limited data

John O Gaunt's Fishery is often best in spring through autumn.

What moved it
  • WindSE 11 km/hLight breeze
Today's fly
Buzzer
Buzzer12-14
Washing-line, in the film
Conditions on the water
Live gauge
Wind
Light breeze
SE 11 km/h
N
SE
from the south-east
Wave20 cm ripple
Water temp
Air temp31°C
CloudClear
Pressure
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 John O Gaunt's Fishery. The ripple should help fish move and feed more confidently. Very warm conditions — trout have a narrower safe zone of cool, oxygen-rich water. Fish only at first light or last light, use barbless hooks, keep fish in the water during release, and stop if fish struggle to recover.
Where
Start with Diawl Bach (12-14) — on the bob / top dropper — slow figure-of-eight retrieve. Rainbows respond to more active retrieves — try short strips between pauses. If that does not produce, switch depth or speed before changing the pattern entirely.
The plan
Plan A

Start with Diawl Bach (12-14) — on the bob / top dropper — slow figure-of-eight retrieve. Rainbows respond to more active retrieves — try short strips between pauses. If that does not produce, switch depth or speed before changing the pattern entirely.

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

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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
55%
Cloud25%
Wind100%
Temp25%

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

Other water nearby · 5
About this water

Two spring-fed fly-and-nymph-only lakes 200 yards from the River Test on the outskirts of King's Somborne, Test Valley, stocked with quality rainbow and brown trout and benefiting from the Test's natural fly life and mayfly hatch. NOTE: batch listed this as Lancashire, but no Lancashire 'John O Gaunt' fly fishery exists; the operational venue is in Hampshire (a North Yorkshire reservoir of similar name is club-only).

  • Fishery
  • Chalk
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • High temperatures may push fish deeper and reduce surface activity.
Directions
Seasons & zones
  • Trout 1 April30 September
Related guides
Casting instructors near here
Booking & contacts
Permits & access