Freestone · Mixed · Stirlingshire, GB-SCT

Allan Water

Photo of Allan Water
Prime · Brown Trout
Partridge and Orange · 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
  • Level0.72 mDropping in the last 6h
  • Water temp11.4°C
  • ClarityClearClearing
Today's fly
Partridge and Orange
Partridge and Orange14-16
Proven pattern for this period
Conditions on the water
Live gauge
Level
Falling
0.72 m
Dropping in the last 6h
Water temp11.4°C
ClarityClear
Weather7°C
WindE 5 km/h
Pressure1021 hPa
Rain · recent14.4 mm
Rain · ahead9.5 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
11°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
Excellent — water temperature is right today, though time of day could be better.
Likely species
Mayflies
Stoneflies
Caddisflies
Gammarids
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Supporters see the full sub-surface read.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

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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 · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Daddy Long LegsHatch
2
3
2
CapererHatch
2
3
3
2
Hawthorn FlyHatch
2
2
GrannomHatch
2
2

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

Ranked for today
Fly box · Brown Trout
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
River Teith
8.0 km
Brown trout · Atlantic salmon · Sea trout
Orchill Fishery
9.0 km
Rainbow trout
Upper Forth
10 km
84
Brown trout · Sea trout · Atlantic salmon
Swanswater Fishery
15 km
Rainbow trout · Brown trout
Frandy Fishery
16 km
Rainbow trout · Brown trout
Gallery · 2
  1. Photo of Allan Water
    Allan Water — image via Wikipedia (Allan Water)
  2. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown
What this classification means

SEPA WFD 2022 — Allan Water: Moderate status. Corrected 2026-06-18 (was recorded Bad). Source: SEPA WFD 2022 classification (spatialdata.gov.scot / SEPA Aquatic Classification Hub).

SEPA (Scotland) · UKSC004601

The full read · show the working · for Brown Trout · confidence 90%
How the 87 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow95 × 22%20.9
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity66 × 12%7.9
Conditions total= 87
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.
Related guides
Scotland Playbookloch & river fishingYorkshire & SpidersNorth Country methodsEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts