Stillwater · Limestone · Asturias / Morcín–Riosa, ES

Embalse de los Alfilorios

Embalse de los Alfilorios terrain map
Fair · Trout
Griffith's Gnat · 18-22
Fairlive now
Reasonable summer fishing likely at Embalse de los Alfilorios
Good wave on — drift country. A useful wave. Work the productive shore.
56% confidence

Peak season here starts around September — worth planning ahead.

What moved it
  • WindS 8 km/hLight breeze
Today's fly
Griffith's Gnat
Griffith's Gnat18-22
Upstream dry, on top
Conditions on the water
Estimate
Wind
Light breeze
S 8 km/h
N
S
from the south
WaveRipple
Water temp15.6°C
Air temp14°C
CloudBroken
Pressure1018 hPa
Rain · recent0.0 mm

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

Reservoir levelas of 24 Aug
68% 10-yr norm
Steady
50% full
Low & steady
-17 ptsvs seasonal norm
0 ptsvs last year
0 ptsthis week
Below seasonal norm but level steady — fish should be settled to the new shoreline.
How to fish it · for Trout
When
March to August (coto open season). Quiet weekday permits are easiest to come by.
Where
Start with CDC F-Fly (Black) (18-22) on a As per local method. Early in the day, nymphs and buzzers fished slowly tend to outperform attractors.
The plan
Plan A

Start with CDC F-Fly (Black) (18-22) on a As per local method. Early in the day, nymphs and buzzers fished slowly tend to outperform attractors.

Plan B

Fish early and late, try deeper during the heat of the day with a fast-sinking line.

Watch for

Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.

Either bank or boat

Good ripple suits both bank and boat. Bank: work inflows, dam walls, and points. Boat: broadside drift covering wind lanes.

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 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
Mayfly (Green Drake)Hatch
2
2
Daddy Long LegsHatch
2
3
2
DuckflyHatch
2
2
Silverhorns & LonghornsHatch
2
3
3
3
2

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

Ranked for today
Trout fly box
Permits & access
Permit required — see local rules.
  • Asturias licence + Alfilorios coto permit required
  • Bank only — no boats (drinking-water reservoir)
  • Limited to 3 anglers/day and 3 trout/angler/day; sin muerte once the cup is reached
  • Stocked with adult native brown trout.
What's coming
Plan ahead
5-day outlook
Condition match
91%
Cloud70%
Wind100%
Temp100%

Conditions are ideal for Embalse de los Alfilorios — wind, cloud and temperature all line up.

Other water nearby · 5
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Temperature (cool) is in the sweet spot for summer fishing.
  • Below seasonal norm but level steady — fish should be settled to the new shoreline.
Related guides
Booking & contacts