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Fishing Llyn Glanmerin: what the data says
8-acre lake near Powys. The lake tops out around 10 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
The drawn water covers 8 acres wrapped in 0.5 miles of bank. Nearly circular (index 1.3), so the story is the bottom, not the bank. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory.
Brown Trout fishing at Llyn Glanmerin
Start shallow in spring: brown trout sit in 1 to 10 ft that time of year. Summer fish stay in 3 to 10 ft, and winter fish hold in 1 to 10 ft. Top water on the chart: Break off the point, a drop-off in the 5-ft range, prime in summer. Fish it in after dark and early morning and you'll meet the bite. Throw a spoon at the thermocline or a deep stickbait (night) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 10 ft | dawn & dusk | Main-lake point (8 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 3 to 10 ft | night & dawn | Break off the point (5 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 2 to 10 ft | dusk & dawn | Main-lake point (8 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 1 to 10 ft | dawn | Break off the point (5 ft) | Jigging spoon, Small stickbait (slow) |
European Perch fishing at Llyn Glanmerin
When the water first warms, european perch slide up into 3 to 10 ft. There's no big seasonal slide here — summer means 3 to 10 ft, winter 3 to 10 ft. Start at Deep basin. It's a deep basin holding about 9 ft of water and rates prime come fall. The feeding windows run early morning. Keep a drop-shot micro plastics or a small crankbait (perch pattern) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 10 ft | midday & dawn | open water | Small jig + curly tail, Inline spinner #1-2 |
| Summer | 3 to 10 ft | dawn | Deep basin (9 ft) | Drop-shot micro plastics, Small crankbait (perch pattern) |
| Fall | 3 to 10 ft | midday | Deep basin (9 ft) | Jigging spoon (small), Drop-shot on deep flats |
| Winter | 3 to 10 ft | midday & dawn | Deep basin (9 ft) | Tungsten jig + maggots, Small balance jig |
Northern Pike fishing at Llyn Glanmerin
Spring northern pike on Llyn Glanmerin hold shallow, usually 2 to 8 ft. They move out to 3 to 10 ft in summer and finish the year down in 3 to 10 ft. Put Break off the point first on the milk run — a drop-off near 5 ft that grades prime for fall. The feeding windows run early morning and the evening. The summer box starts with a bucktail or a weedless spoon over cabbage.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | open water | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 10 ft | dawn & dusk | Break off the point (5 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 10 ft | midday & dawn | Break off the point (5 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 10 ft | midday | Main-lake point (8 ft) | Tip-ups, Large jigging spoon |
Notable structure
- Deep basin: deep basin, around 9 ft
- Main-lake point: point, around 8 ft
- Break off the point: drop-off, around 5 ft
Common questions
How deep is Llyn Glanmerin?
Llyn Glanmerin is about 10 ft (3 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
What fish are in Llyn Glanmerin?
Anglers target northern pike, european perch, brown trout on Llyn Glanmerin. This isn't a survey of the water — none is published for it — but an informed estimate from the species common to the region, narrowed by this water's depth, size and each species' range.
Where is the best fishing spot on Llyn Glanmerin?
Deep basin is the top-rated area: a deep basin in about 9 ft of water that rates prime for european perch in fall. Every other rated spot, per species and season, is on the map above.
When is the best time to fish Llyn Glanmerin?
For brown trout, the summer bite is best in after dark and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Llyn Penrhaeadr 4 mi · Glaslyn 5 mi · Llyn Cwm-byr 6 mi · Bugeilyn 6 mi · Tal-y-llyn Lake 7 mi · Llyn Cau 9 mi · Llyn y Gadair 9 mi · Llyn Clywedog 11 mi · Llyn Gwernan 11 mi · Llynnoedd Ieuan 11 mi · Llyn Isaf 15 mi · Llyn Cwm-mynach 16 mi
See how Llyn Glanmerin stacks up: best northern pike lakes in United Kingdom · best european perch lakes in United Kingdom · best brown trout lakes in United Kingdom
Browse all United Kingdom fishing maps or see every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.