Freestone · Granite · Castilla y León / Ávila (upper Alberche headwaters)

Río Alberche

Río Alberche — 000309 - Río Alberche

The Alberche is a granite freestone rising on the Sierra de Gredos and flowing south out of Ávila.

Marginal · Brown Trout
Klinkhammer · 14-18
Marginallive now
Slow going — pick your moments
River temperature is the limiting factor today, not the flow. Fish dawn or dusk if you go at all, and handle everything with extra care.
80% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp19.7°C
  • ClarityClear
Today's fly
Klinkhammer
Klinkhammer14-18
Proven pattern for this period
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp19.7°C
ClarityClear
Weather21°C
WindS 8 km/h
Pressure1016 hPa
Rain · recent0.0 mm
Rain · ahead0.4 mm

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

Water temperature for Brown Trout
Warm — slow
20°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 19.7°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 2 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

See the full sub-surface read with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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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 · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
1
Large Dark OliveHatch
1
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Autumn OliveHatch
1
2
1
GrannomHatch
1
1

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

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Castilla y León fishing licence required on the Ávila side
  • Check the exact upper Alberche tramo in the official visor before travel rather than assuming one simple Gredos permit model.
What's coming
Plan ahead
5-day outlook
Water here around 20°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. Río Alberche — 000309 - Río Alberche
    000309 - Río Alberche
  2. Terrain map of the venue
    Terrain map
About this water

The Alberche is a granite freestone rising on the Sierra de Gredos and flowing south out of Ávila. This covers the upper mountain stretch near the Gredos headwaters, not the river's lower reaches further downstream. Clear, cold headwaters, pocket water, and granite pool-and-run structure support wild browns and technical small-river tactics.

  • Granite
The full read · show the working · for Brown Trout · confidence 80%
How the 29 is built — score × weight = contribution
Temperature29 × 28%8.1
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time75 × 13%9.8
Pressure80 × 7%5.6
Insect activity50 × 12%6.0
Conditions total= 60
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 21 March → 31 July
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts