Freestone · Mixed · South Lanarkshire, GB-SCT

Avon Water (Lanarkshire)

A rocky, tree-lined stretch of the River Avon (Lanarkshire) with shallow water running over boulders.

The Avon is the Clyde's nearest major tributary on the south side and a proper little trout river — fast, tumbling, and the kind of water where a short rod and a few spider patterns is all the equipment you actually need.

Today · Closed season
Czech Nymph
Forecast · Today
Closed season
Out of season. Try elsewhere.
75% projected
Today's fly
Czech Nymph
Czech Nymph
Conditions on the water · Today
Live gauge
Level
Steady
0.36 m
Water temp6.6°C
ClarityClear
Weather5°C
WindN 23 km/h
Pressure1008 hPa
Rain · recent0.8 mm
Rain · ahead4.3 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Cool — slow
7°C est.ideal 10–16°C
0°14°28°
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.
Likely species
Stoneflies
Gammarids
Hatch timeline · todayPeak at 11am

12pm(now) — Autumn Needle Fly

Stage: Creeping nymphsApproach: Heavy nymphActivity: 31%
Also:Black Midge28%Autumn Olive22%
Peak emergence window4 food groups active

Peak activity at 11am — Autumn Needle Fly (Autumn Needle Fly, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 4 guilds as a supporter.

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Evidence
Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · November highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Daddy Long LegsHatch
2
3
3
2
CapererHatch
2
3
3
2
Hawthorn FlyHatch
2
2
GrannomHatch
2
2

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

Ranked for today
Brown Trout fly box

A balanced Scottish river profile. Early season nymphs and spiders, then more dry-fly and emerger fishing as hatches strengthen on steadier glides and richer water.

What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Upper Clyde
29 km
0
Brown trout
River Kelvin
31 km
0
Brown trout
Cowans Law
20 km
Rainbow trout
Craufurdland Fishery
23 km
Rainbow trout
Burns Trout Fishery
32 km
Rainbow trout · Brown trout
Gallery · 2
  1. A rocky, tree-lined stretch of the River Avon (Lanarkshire) with shallow water running over boulders.
    River Avon
  2. Terrain map of the venue
    Terrain map
About this water

It runs off the Lanarkshire hills through farmland and wooded gorges, gathering colour quickly after rain and dropping clear almost as quickly, which is exactly what a wild trout fisher wants. The fishing is controlled by the Avon Angling Association; day tickets are available, and the beats are wadeable with care. Best in April and May when the large dark olives are hatching, and again in early autumn. Not a river to make you famous — just a reliable few hours of wild trout on small flies, which is quite a lot when you think about it.

  • Mixed
The full read · show the working · for Brown Trout · confidence 75%
How the 0 is built — score × weight = contribution
Temperature39 × 28%10.9
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity29 × 12%3.5
Conditions total= 60
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Warmer water — toward the 10–16 °C ideal band — would lift the temperature score.
The dawn and dusk windows score higher than the midday lull.
Related guides
Scotland Playbookloch & river fishingYorkshire & SpidersNorth Country methodsEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts
At a glance

Avon Water (Lanarkshire) is a freestone river in South Lanarkshire, Scotland. It sits at about 152 m above sea level. The river is described as roughly 28 km long. The species listed for this water is brown trout. Best window recorded for anglers: April to June, September. Core methods listed: upstream wet fly; North Country spiders; dry fly. Level and flow data for this water is linked from 1 gauge. Nearby waters in our listings include Cowans Law at 20 km, Craufurdland Fishery at 23 km and Upper Clyde at 29 km.