Stillwater · Mixed · Midlothian

Glencorse Reservoir

Glencorse Reservoir terrain map

A narrow, deep reservoir in a wooded glen seven miles south of Edinburgh, reachable from the city in twenty minutes if the traffic is kind and the Flotterstone car park hasn't filled up.

Fair · Rainbow
Kate McLaren · 12-14
Fairlive now
Reasonable summer fishing likely at Glencorse Reservoir
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.
60% confidence

Glencorse Reservoir is often best in spring through autumn.

What moved it
  • WindSW 16 km/hGentle breeze
Today's fly
Kate McLaren
Kate McLaren12-14
Retrieve, in the film
Conditions on the water
Live gauge
Wind
Gentle breeze
SW 16 km/h
N
SW
from the south-west
Wave20 cm ripple
Water temp
Air temp23°C
CloudOvercast
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 Glencorse Reservoir. 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 Marabou Damsel (8-12) — on the point. 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 Marabou Damsel (8-12) — on the point. 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.

Either bank or boat

Good ripple suits both bank and boat. Bank: work inflows, dam walls, and points. Boat: broadside drift covering wind lanes.

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
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
49%
Cloud50%
Wind65%
Temp25%

Conditions are away from Glencorse Reservoir's sweet spot — it usually fishes best in ripple wind with cloud skies.

Other water nearby · 5
About this water

A narrow, deep reservoir in a wooded glen seven miles south of Edinburgh, reachable from the city in twenty minutes if the traffic is kind and the Flotterstone car park hasn't filled up. Scottish Water own it; the Glencorse Angling Improvement Association lease the fishing. Fly only, boat and bank, stocked brown and rainbow trout on a wild brown base. The reservoir is long and thin, walled by conifer plantation on one side and heather slopes on the other, and it takes the weather personally — a breeze that was friendly at Flotterstone can become something else entirely once you're halfway down the west shore. It is, for a great many Edinburgh anglers, the first water they ever fished properly, and most of them still come back.

  • Reservoir
  • Mixed
Why this score
  • Buzzers are in their seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 1 April31 October
Related guides
Casting instructors near here
Booking & contacts