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

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.

Today · Closed season
Klinkhammer
Forecast · Today
Closed season
Out of season. Plenty of other water available now.
45% projected
Today's fly
Klinkhammer
Klinkhammer
Conditions on the water · Today
Live gauge
Level
Rising
0.24 m
Lifting fast
Water temp16.0°C
ClarityUnfishable
Weather23°C
WindN 18 km/h
Pressure1017 hPa
Rain · recent0.0 mm
Rain · ahead2.6 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
16°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 19.4°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 4pm

12pm(now) — Reed Smut

Stage: On emergersApproach: Emerger or dryActivity: 31%
Also:Flying Ants30%Cinnamon Sedge26%
Peak emergence window7 food groups active

Peak activity at 4pm — Blue Winged Olive (Blue Winged Olive, 12 food groups active)

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey(1)

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 · September 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
Brown SedgeHatch
1
2
2
2
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
Cooler water nearby · 2
Water here around 19°C — probably warm enough to stress Brown Trout . These are likely cooler.
Embalse de San Juan
28 km
~19°C
Black bass · Carp · Pike
Embalse de El Burguillo
14 km
~19°C
Carp · Barbel
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 0 is built — score × weight = contribution
Temperature19 × 28%5.3
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity57 × 12%6.8
Limiting factor: Water temperature (19.4°C) is outside Brown Trout's preferred range (10–16°C)= 62
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