- Ecology: Moderate
- Chemical: Unknown
EA (England) · UKGB108043022550
Water temperature for Brown Trout
Warm — slow17°C est.ideal 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
Good — water clarity is right today, though time of day could be better.
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 3 with Pro.
Start free trial14-day free trial. Cancel anytime.
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
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
Large Cinnamon SedgeHatch
2
3
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
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Brown Trout fly box
Local classics: Iron Blue Dun·Grey Wulff·Pheasant Tail Nymph
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.
Visit official site ↗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.
Visit official site ↗What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
River Wylye near Warminster Terrain map
Water quality (WFD)
The full read · show the working · for Brown Trout · confidence 90%
How the 78 is built — score × weight = contribution
Temperature83 × 28%23.2
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity61 × 12%7.3
Conditions total= 78
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 1 April → 15 October
- Grayling 16 June → 14 March
Statutory window is 16 June – 14 March. Wylye grayling booking data is limited — October to end of February is a safe provisional default. Always confirm with the beat.
Typically fished 1 October → 28 February.
Prime sport 1 October → 28 February
Related guides
Casting instructors near here
Booking & contacts
Clubs & associations
River Wylye
Water temperature for Brown Trout
Warm — slow17°C est.ideal 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
Good — water clarity is right today, though time of day could be better.
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 12 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 3 guilds with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 3 with Pro.
Start free trial14-day free trial. Cancel anytime.
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
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
Large Cinnamon SedgeHatch
2
3
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
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Ranked for today
Brown Trout fly box
Local classics: Iron Blue Dun·Grey Wulff·Pheasant Tail Nymph
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.
Visit official site ↗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.
Visit official site ↗What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
River Wylye near Warminster Terrain map
Water quality (WFD)
- Ecology: Moderate
- Chemical: Unknown
EA (England) · UKGB108043022550
The full read · show the working · for Brown Trout · confidence 90%
How the 78 is built — score × weight = contribution
Temperature83 × 28%23.2
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity61 × 12%7.3
Conditions total= 78
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 1 April → 15 October
- Grayling 16 June → 14 March
Statutory window is 16 June – 14 March. Wylye grayling booking data is limited — October to end of February is a safe provisional default. Always confirm with the beat.
Typically fished 1 October → 28 February.
Prime sport 1 October → 28 February
Related guides
Casting instructors near here
Booking & contacts
Clubs & associations