Freestone · Limestone · Ryedale / North York Moors, GB-ENG

River Rye

A three-arched stone bridge over the River Rye, surrounded by lush green riverside vegetation near Rievaulx, North Yorkshire.

Technical limestone river — clear alkaline water that demands the precision of a chalk stream with the fly choices of a northern river.

Prime · Brown Trout
Pheasant Tail Nymph · 14-16
Primelive now
About as good as it gets
Low and clear — careful approach country. Take your time — read the water before you cast.
90% confidence
What moved it
  • Level0.06 mLast reading 13h ago
  • Water temp15.3°C
  • ClarityClear
Today's fly
Pheasant Tail Nymph
Pheasant Tail Nymph14-16
Upstream, sub-surface
Conditions on the water
Live gauge
Level
Steady
0.06 m
Last reading 13h ago
Water temp15.3°C
ClarityClear
Weather14°C
WindNW 12 km/h
Pressure1018 hPa
Rain · recent0.0 mm
Rain · ahead1.2 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
Ideal
15°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Olives April through May; Mayfly late May where it holds; sedges through summer evenings; small dark flies into October.
Where
Upper Rye through Ryedale is small intimate water; pool tails and the seams under alders. The middle river widens through Helmsley.
Method
Upstream dry to risers when olives or sedges are off; North Country spider on the swing in cooler water — Snipe and Purple, Partridge and Orange, Waterhen Bloa. Move upstream slowly, fish each lie properly.
Kit
9 ft #4 — Yorkshire freestone default. Floating line, 9 to 12 ft leader to 4 to 5 lb fluoro. Studded boots for slick stones.
Why this works
Excellent — water temperature is right today, though insect activity could be better.
Hatch timeline · todayPeak at 6am

Hatch predictions

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Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

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Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
1
Grayling seasonSeason
2
2
1
1
2
2
2
2
2
2
Daddy Long LegsHatch
2
3
2
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1

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

Ranked for today
Brown Trout fly box
North Country spider water

Clear alkaline water that asks for chalk-stream manners and northern flies. Fish the dry to risers, and keep the spiders small and sparse — these fish get a good long look.

Local classics: Waterhen Bloa·Greenwell's Spider·Partridge & Yellow
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Costa Beck
17 km
Brown trout
Dromonby Farm Fishery
23 km
Rainbow trout · Brown trout
River Derwent (Yorkshire)
26 km
10
Brown trout · Grayling
Bellflask Fishery
33 km
Rainbow trout · Brown trout
Maran Lakes
34 km
Rainbow trout · Brown trout
Gallery · 2
  1. A three-arched stone bridge over the River Rye, surrounded by lush green riverside vegetation near Rievaulx, North Yorkshire.
    _DSC7440
  2. Terrain map of the venue
    Terrain map
About this water

Technical limestone river — clear alkaline water that demands the precision of a chalk stream with the fly choices of a northern river. Sight-fishing in shallow water where you can spot individual fish rising. Dry fly is primary when fish are up; spiders need to be smaller and sparser than on rougher water. Size matters here; #16–18 is standard. Less forgiving than the rougher Dales rivers but rewards technical excellence. Long-established club water (Ryedale Anglers) with some association stretches available.

  • Limestone
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Fail
What this classification means

EA waterbody 'Rye from River Seph to Holbeck' (GB104027068200) — the Ryedale main stem through Helmsley and Nunnington (Ryedale Anglers water; classifying sites at Rievaulx Bridge, Helmsley and Nunnington Road Bridge). Latest EA data (Cycle 3, 2022): Moderate ecological status. Chemical 'Fail' reflects the England-wide ubiquitous-substance failure (mercury and PBDE in biota); the 2022 cycle itself records chemical as 'does not require assessment'. Corrected 2026-06-18 from GB104027068220, which is the Riccal (a Rye tributary), not the main stem.

EA (England) · GB104027068200

The full read · show the working · for Brown Trout · confidence 90%
How the 85 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity60 × 12%7.2
Conditions total= 85
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 April → 30 September
  • Grayling 16 June → 14 March

    The Rye and its tributaries hold excellent grayling. Most water is club-managed — check local Yorkshire DA rules.

    Prime sport 1 September → 31 December

Sea trout: Variable seasonal (2026)

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