Spate · Mixed · Cornwall / Devon border, GB-ENG

River Inny

The River Inny, a large tributary of the River Tamar, flowing beneath Bealsmill Bridge in Cornwall.

The Inny is a small Tamar tributary — Cornish in character, rising above Altarnun and running through wooded country to the Tamar near Greystone Bridge.

Prime · Atlantic Salmon
Willie Gunn · tube / double
Primelive now
Prime conditions — go now
Low and clear — careful approach country. Cover the water properly, fish each lie once.
85% confidence
What moved it
  • Level0.38 mLast reading 2h ago
  • Water temp13.7°C
  • ClarityClear
Today's fly
Willie Gunn
Willie Gunntube / double
Regional salmon default — river-specific evidence is thin.
Conditions on the water
Live gauge
Level
Steady
0.38 m
Last reading 2h ago
Water temp13.7°C
ClarityClear
Weather17°C
WindSW 14 km/h
Pressure1010 hPa
Rain · recent4.6 mm
Rain · ahead3.1 mm

Live readings only. Trends shown where the gauge supports them.

Water temperature for Atlantic Salmon
Ideal
13.7°Cideal 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
Excellent — water temperature is right today, though river flow could be better.
Likely species
Hatch timeline · todayPeak at 11am

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 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
1
Trout seasonSeason
1
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 small Cornish Tamar tributary — wild browns throughout, peal on the lower river from midsummer. Standard short-rod Westcountry fishing.

What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
  1. The River Inny, a large tributary of the River Tamar, flowing beneath Bealsmill Bridge in Cornwall.
    The River Inny seen from Bealsmill Bridge, Cornwall.
  2. Terrain map of the venue
    Terrain map
About this water

The Inny is a small Tamar tributary — Cornish in character, rising above Altarnun and running through wooded country to the Tamar near Greystone Bridge. It is principally wild brown trout fishing on Bodmin-fringe water, with sea trout (peal) on the lower beats from mid-June and a small autumn salmon run that follows the lower Tamar. Bealsmill is the only gauge and sits low down, near the Tamar confluence; for the upper river it should be read as a falling-water indicator rather than a real-time level. The Inny has the same kind of intimate pocket-water character as the upper Lynher. Atlantic salmon are assessed by the Environment Agency against each river's Conservation Limit — many principal rivers are classed 'at risk' with mandatory catch-and-release byelaws; check current rules before fishing.

Sea trout here

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

  • Mixed
Why this score · for Atlantic Salmon
  • Temperature10030% weight
  • Flow6025% weight
  • Clarity9520% weight
  • Feeding Time9015% weight
  • Pressure8510% weight
Directions
Seasons & zones
  • Salmon 1 March → 14 October
  • Trout 15 March → 30 September

Sea trout: Variable seasonal (2026)

Related guides
Casting instructors near here
Booking & contacts