River · Chalk · East Anglia / Norfolk

Bintry Mill Fishery

The River Wensum, a Norfolk chalk stream, flowing past Bintree Mill near Guist, Norfolk

Day ticket chalk stream trout fishing on the upper River Wensum in North West Norfolk near Dereham.

Poor · Brown Trout
CDC F-Fly · 18-20
Poorlive now
Not the day for it
River temperature is the limiting factor today, not the flow. This is not the day to push it. Check the thermal advice above before you head out.
90% confidence
What moved it
  • Level0.37 m
  • Water temp23.3°C
  • ClarityVery colouredColouring up
Today's fly
CDC F-Fly
CDC F-Fly18-20
Upstream dry, on top
Conditions on the water
Live gauge
Level
Rising
0.37 m
Water temp23.3°C
ClarityVery coloured
Weather29°C
WindNE 12 km/h
Pressure1015 hPa
Rain · recent0.0 mm
Rain · ahead0.2 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
Warm — slow
23°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
Water at 23.3°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Likely species
Caddisflies
  • Large sedgesMost likely
    #8–10 · Adult
    Big waked sedge in the last light and after dark.
  • Green PeterAlso possible
    #8–10–12 · Adult
    Pupa in the wave; wake a dry sedge at last light.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 3 with Pro.

Start free trial

14-day free trial. Cancel anytime.

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
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

The heartland of English dry fly fishing. Upstream dry fly and emerger presentation dominates. Nymphing restricted or discouraged on many beats. Gin-clear alkaline water, prolific weed growth, educated wild brown trout. Precise imitation and delicate presentation are paramount.

What's coming
Plan ahead
5-day outlook
Water here around 23°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. The River Wensum, a Norfolk chalk stream, flowing past Bintree Mill near Guist, Norfolk
    The River Wensum by Bintree Mill, the historic mill after which Bintry Mill Fishery is named
  2. Terrain map of the venue
    Terrain map
About this water

Day ticket chalk stream trout fishing on the upper River Wensum in North West Norfolk near Dereham. The Wensum is an SSSI and SAC (Sites of Special Scientific Interest and Special Area of Conservation), making it one of the most important rivers in the UK and Europe. Bintry Mill manages fishing between Bintry Mill and just upstream from North Elmham mill. Clear, cold chalk water with wild brown trout and grayling.

  • Chalk
The full read · show the working · for Brown Trout · confidence 90%
How the 2 is built — score × weight = contribution
Temperature1 × 28%0.3
Flow55 × 22%12.1
Clarity15 × 18%2.7
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity48 × 12%5.8
Limiting factor: Water temperature (23.3°C) is outside Brown Trout's preferred range (10–16°C)= 37
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
A drop and clear would lift the flow and clarity scores.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 1 April → 30 September
Related guides
Trout Near Londonaccess guideEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts
Clubs & associations