Stillwater · Old Red Sandstone · Wales / Brecon Beacons (Taff Valley), GB-WLS

Beacons Reservoir

Beacons Reservoir terrain map
Fair · Rainbow
Minkie · 6-10
Fairlive now
Reasonable summer fishing likely at Beacons Reservoir
Good wave on — drift country. A useful wave. Work the productive shore.
58% confidence

Beacons Reservoir is often best in spring through autumn.

What moved it
  • WindS 21 km/hModerate breeze
Today's fly
Minkie
Minkie6-10
Retrieve, sub-surface
Conditions on the water
Estimate
Wind
Moderate breeze
S 21 km/h
N
S
from the south
Wave40 cm chop
Water temp17.1°C
Air temp16°C
CloudBroken
Pressure1007 hPa
Rain · recent0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

How to fish it · for Rainbow
When
The buzzer is on at Beacons Reservoir. The ripple should help fish move and feed more confidently. Early morning is often the most productive window in summer — make the most of it.
Where
Start with Minkie (6-10) — on the point. Midday in warm weather — switch to a fast-sink or Di-7 and fish boobies or blobs along the bottom. Rainbows respond to more active retrieves — try short strips between pauses.
The plan
Plan A

Start with Minkie (6-10) — on the point. Midday in warm weather — switch to a fast-sink or Di-7 and fish boobies or blobs along the bottom. Rainbows respond to more active retrieves — try short strips between pauses.

Plan B

If the main plan stalls, drop to a size 14–16 midge — switch to a washing-line or suspender rig and change drift line before you change food group.

Watch for

Buzzer may strengthen through the middle of the day as conditions warm.

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 with Pro.

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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
2
2
1
Heather FlyHatch
2
2
Daddy Long LegsHatch
2
3
2
Claret DunHatch
2
3
2
Murrough (Great Red Sedge)Hatch
2
3
2

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

Ranked for today
Rainbow fly box
Bays & launches · 1
Beacons Reservoir — day ticket via Fishing PassportAccess varies
Day-ticket catch-and-release fishing for wild brown trout and a few surviving stocked rainbows on the highest of the Taff Valley reservoirs.
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What's coming
Plan ahead
5-day outlook
Condition match
86%
Cloud100%
Wind65%
Temp100%

Conditions are ideal for Beacons Reservoir — wind, cloud and temperature all line up.

Other water nearby · 5
Llyn Cwm Llwch
4.0 km
Brown trout
Llwyn-on Reservoir
7.0 km
Brown trout · Rainbow trout
Talybont Reservoir
11 km
Brown trout
Afon Cynon
16 km
Brown trout
Llyn y Fan Fach
19 km
Brown trout
Why this score
  • Cloud cover (cloud) suits the fishery well.
  • Temperature (cool) is in the sweet spot for summer fishing.
  • Buzzer is in its seasonal window, boosting the chance of targeted feeding.
  • Reservoirs of this kind fish hard at this time of year.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 20 March → 12 October
Related guides
Scotland Playbookloch & river fishingThermal Layers & Troutreading depth and temperatureEuro Nymphingsubsurface methods
Casting instructors near here
Booking & contacts
Clubs & associations