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

Río Tiétar

Río Tiétar terrain map
Terrain map

Upper Ávila-side Tiétar row: a western Gredos granite freestone draining toward the Tagus.

Poor · Brown Trout
Klinkhammer · 14-18
Poorlive now
Not the day for it
River steady at a fishable height. Take your time — read the water before you cast.
90% confidence
What moved it
  • Level0.49 m
  • Water temp22.5°C
  • ClarityClear
Today’s fly
Klinkhammer
Klinkhammer14-18
Proven pattern for this period
Conditions on the water
Live gauge
Level
Steady
0.49 m
Water temp22.5°C
ClarityClear
Weather26°C
WindNE 14 km/h
Pressure1018 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

Live readings — water temperature is an estimate where the gauge does not record it.

Water temperature for brown trout
Warm — slow
23°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 22.5°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 5 active hatches hour by hour with Pro.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

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 Tiétar tramo in the official visor, especially because downstream administration and rules differ once the river leaves the province.
What's coming
Plan ahead
5-day outlook
Water here around 23°C. Nothing cooler within range — carry a thermometer.
About this water

Upper Ávila-side Tiétar row: a western Gredos granite freestone draining toward the Tagus. This entry should be read as the upper Ávila / Gredos Tiétar, not as the whole cross-border river system. Cold, clear mountain water, pocket water, and pool-and-run structure support wild browns with Iberian genetic importance connected to the wider Gredos conservation story.

  • Granite
The full read · show the working · for brown trout · confidence 90%
How the 8 is built — score × weight = contribution
Temperature4 × 28%1.1
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity56 × 12%6.7
Limiting factor: Water temperature (22.5°C) is outside Brown Trout's preferred range (10–16°C)= 53
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout21 March → 31 July
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts