Spate · Mixed · Highlands / Moray Firth, GB-SCT

River Nairn

Photo of River Nairn

The River Nairn is a declining Atlantic salmon system where declining Atlantic salmon populations are Category 3 under Scottish Government classification; every fish returned matters.

Today · Prime conditions — go now
Elk Hair Caddis
Forecast · Today
Prime conditions — go now
Settled and taking. Work it methodically.
70% projected
Today's fly
Elk Hair Caddis
Elk Hair Caddis
Conditions on the water · Today
Live gauge
Level
Steady
0.38 m
Water temp12.0°C
ClarityClear
Weather12°C
WindN 20 km/h
Pressure1014 hPa
Rain · recent1.7 mm
Rain · ahead7.9 mm

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

Water temperature for Atlantic Salmon
Ideal
12°C est.ideal 10–16°C
0°14°28°
How to fish it · for Atlantic Salmon
When
Morning into early afternoon.
Where
Pool tails, steadier runs, and any water with pace.
Method
Fish a sensible line-and-fly combination for the height and pace of water.
Kit
13 ft #8/9 double-hander in spate, 10 ft #8 single in low water. Floating line plus a fast-sink tip. 12–15 lb fluoro tippet.
Why this works
Fair conditions based on river hydrology and migration patterns.
Likely species
Hatch timeline · todayPeak at 6pm

12pm(now) — Autumn Needle Fly

Stage: Creeping nymphsApproach: Heavy nymphActivity: 75%
Also:Black Gnat74%Autumn Olive55%
Peak emergence windowWeather boost9 food groups active

Peak activity at 6pm — Caperer (Caperer, Weather boost)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Supporters see what else is on the menu.

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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 · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
2
2
1
March BrownHatch
2
3
2
CapererHatch
2
3
3
2
Heather FlyHatch
2
2
Autumn DunHatch
2
3
2

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

Ranked for today
Atlantic Salmon 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.

Beats · 3

The Nairn is a compact, association-led spate river — about 40 miles long, with strong ordinary-angler value and three target species. The headline access is Nairn Angling Association, FishPal-described as arguably some of the best salmon and sea-trout association water in Scotland, with six miles, four rods and 34 named pools (the association's own site says an eight-mile stretch — log that as a boundary discrepancy, not a silent fix). The board runs a 2026 conservation policy with practical, gauge-tied method rules. The useful question is height: low clear water is hard, a fresh falling spate transforms it, and brown trout sit in a separate lane from the salmon story.

Nairn Angling AssociationMembers
The main public-access route and the heart of the river — the association (founded 1923) controls a long association stretch around Nairn with affordable day and visitor permits, no ghillies, and a five-year average around 113 fish.
Middle NairnEnquiry
Potential salmon, sea-trout and brown-trout water above the main association stretch — held as context until controllers and any visitor route are verified.
Upper Nairn — brown trout contextEnquiry
Headwater and upper-river brown-trout context flowing off the Grampian Highlands — not a salmon-first product.
What's coming
Plan ahead
5-day outlook
Fishing better nearby · 5
Gallery · 2
  1. Photo of River Nairn
    River Nairn — image via Wikipedia (River Nairn)
  2. Terrain map of the venue
    Terrain map
About this water

The River Nairn is a declining Atlantic salmon system where declining Atlantic salmon populations are Category 3 under Scottish Government classification; every fish returned matters. Mandatory catch-and-release applies. It carries salmon from spring through autumn but is at its best after summer and autumn rains bring fish up from the firth. A classic wading river — not big enough for boat work, which makes it intimate and pleasurable fishing. Spring salmon from April; summer grilse July–August; autumn fish September–October. Fish with standard spate-river tactics: smaller flies (size 10–14 doubles), floating or intermediate line, covering pools systematically. The Nairn Angling Association controls much of the water and provides day tickets. Sea trout fishing from July can be excellent on summer evenings.

Sea trout here

Summer-autumn runs (June–September), nocturnal pattern in peak season

  • Mixed
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown

SEPA (Scotland) · UKSC020305

The full read · show the working · for Atlantic Salmon · confidence 75%
How the river scores — hydrology factors
Water heightMedium Ideal0.0
Recent riseNone0.0
Falling after liftNot Applicable0.0
Water temperatureCool To Moderate0.0
Time in seasonOpening Period0.0
ClarityClearing0.0
Hydrology base0.0
Legal gate: Unknown Check Local Rules
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Directions
Seasons & zones
  • Salmon 1 February → 7 October

Sea trout: Variable seasonal (2026)

Related guides
Casting instructors near here
Booking & contacts