Spate · Silurian · Mid Wales / Powys (Ithon Valley, Wye tributary)

Ithon

Ithon terrain map

A quieter Radnorshire Wye tributary running past Llandrindod Wells and Penybont, day-ticketed through the Fishing Passport across three beats of shale-and-gravel water.

Poor · Atlantic Salmon
Poorlive now
Slow going — better windows ahead
River dropping into shape after a lift. Little in your favour today. Fish the certain lies, or leave it for a better one.
90% confidence
What moved it
  • LevelProxyvia Wye
  • Water temp22.3°C
  • ClarityVery colouredColouring up
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Wye
Water temp22.3°C
ClarityVery coloured
Weather29°C
WindW 13 km/h
Pressure1020 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

No gauge on this water — conditions are inferred from Wye. The trend transfers, the absolute level does not.

Water temperature for Atlantic Salmon
Welfare risk
22°C est.ideal 10–14°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
Water at 22.3°C. This is the line where catch-and-release kills atlantic salmon. Do not fish for them today.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 5 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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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 · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Daddy Long LegsHatch
2
3
2
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2

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

Beats · 3 · 1 reaches
Ithon beats — Fishing Passport · 3 beatsDay rods
Bryn Ithon, Disserth, Severn Arms — Beat 1
The 3 beats
Bryn IthonDay tickets
Wye & Usk Foundation (Fishing Passport)
Left-bank-only stretch of the River Ithon, just under a mile, just downstream of Llandrindod Wells. Shale/bedrock bed, notably underfished.
Fishing Passport, max 2 tickets/day. Parking ~650m from beat start.
DisserthDay tickets
Wye & Usk Foundation (Fishing Passport)
~3 miles of River Ithon just downstream of Llandrindod Wells (mostly right bank, with a two-thirds-mile double-bank middle section). Non-exclusive — a local club also holds rights here, though overlap is described as remote given the length.
Fishing Passport, max 4 tickets/day.
Severn Arms — Beat 1Day tickets
Wye & Usk Foundation (Fishing Passport)
One of three beats making up the Severn Arms' 4 miles of River Ithon near Penybont — this is Beat 1. Easy, open, gravel-bed water, among the most accessible on the whole Wye catchment. Grayling and trout primarily; salmon spawning also occurs on this reach.
Fishing Passport, max 2 tickets/day. Parking ~150m. Accommodation tie-in with the Severn Arms Hotel. Grayling trotting start date here is 1 Oct — earlier than the 1 Nov used on Bryn Ithon and Disserth Ithon, so don't assume a catchment-wide date.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 1
Probably above the Atlantic Salmon safety line — these are likely cooler, but carry a thermometer.
Llynfi
28 km
~22°C
Brown trout · Grayling · Chub
About this water

A quieter Radnorshire Wye tributary running past Llandrindod Wells and Penybont, day-ticketed through the Fishing Passport across three beats of shale-and-gravel water. Underfished relative to its neighbours, it holds wild brown trout, grayling and chub, with salmon spawning recorded on at least one beat even though it isn't marketed as a salmon fishery.

  • Silurian
Why this score · for Atlantic Salmon
  • Temperature030% weight
  • Flow6025% weight
  • Clarity1520% weight
  • Feeding Time9015% weight
  • Pressure8510% weight
Related guides
Atlantic Salmonsalmon tacticsGrayling Playbookgrayling tacticsYorkshire & SpidersNorth Country methods
Casting instructors near here
Booking & contacts