Chalk Stream · Chalk · Wiltshire

River Wylye

River Wylye venue image
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Beautiful Wiltshire chalk stream — smaller and more intimate than the Test, with classic chalk stream soul.

Poor · Brown Trout
Sherry Spinner · 14-16
Poorlive now
Not the day for it
Low and clear — careful approach country. A morning for the obvious fish only.
80% confidence
What moved it
  • Level0.19 mLast reading 3h ago
  • Water temp20.9°C
  • ClarityClear
Today’s fly
Sherry Spinner
Sherry Spinner14-16
Upstream dry, on top
Conditions on the water
Live gauge
Level
Steady
0.19 m
Last reading 3h ago
Water temp20.9°C
ClarityClear
Weather17°C
WindW 13 km/h
Pressure1022 hPa
Rain · recent0.8 mm
Rain · ahead0.0 mm

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

Water temperature for brown trout
Warm — slow
20.9°Cideal 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.
Why this works
⚠️ Water at 20.9°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots. Otherwise poor — water clarity is in the right range.
Hatch timeline · todayQuiet day

Hatch predictions

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

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Evidence
Survey-backed · regionalModerate confidence

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

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
Grayling seasonSeason
2
2
1
1
2
2
2
2
2
2
Brown SedgeHatch
2
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Blue Winged OliveHatch
2
3
3
3
3
2
Mayfly (Green Drake)Hatch
2
2

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

Ranked for today
Brown Trout fly box
Beats · 3
How to fish the WylyeAccess varies
The Wylye is a classic Wiltshire chalk stream — a trout and grayling river, not a salmon river.
Wilton Fly Fishing Club waterAccess varies
The Wilton Fly Fishing Club, formed in 1876, holds just over seven miles of keepered chalk-stream fishing for wild brown trout and grayling, accessed through private gateways and paths for peace and seclusion.
Langford Lakes day-ticket waterAccess varies
The most accessible Wylye fishing is the stretch at Wiltshire Wildlife Trust's Langford Lakes nature reserve — around two-thirds of a kilometre of wild brown trout fishing in spring and summer and grayling through autumn and winter.
What's coming
Plan ahead
5-day outlook
Water here at 20.9°C. Nothing cooler within range.
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Beautiful Wiltshire chalk stream — smaller and more intimate than the Test, with classic chalk stream soul. Clear water, weed channels, gravel runs, prolific hatches. Less pressured than famous Hampshire neighbours means you can breathe a bit. Mayfly in May is glorious; BWO fishing through autumn is consistent. Grayling are particularly good here in winter. Sight-fishing to rising fish in clear water; tight quarters demand accurate short casts. Mostly syndicate and club water, but the relative accessibility makes this a gem.

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

EA (England) · UKGB108043022550

The full read · show the working · for brown trout · confidence 80%
How the 22 is built — score × weight = contribution
Temperature15 × 28%4.2
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity52 × 12%6.2
Limiting factor: Water temperature (20.9°C) is outside Brown Trout's preferred range (10–16°C)= 59
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout1 April → 15 October
  • Grayling16 June → 14 March
Related guides
Chalkstream Playbookchalk stream tacticsGrayling Playbookgrayling tacticsTrout Near Londonaccess guide
Booking & contacts