Freestone · Schist Metamorphic · Andalucía / Granada (Sierra Nevada)

Río Lanjarón

Río Lanjarón — Río Lanjarón river (DSCF5984)
Contributor photo

Río Lanjarón river (DSCF5984)

Trougnouf (Benoit Brummer) (https://commons.wikimedia.org/wiki/User:Trougnouf) - CC BY

A compact Sierra Nevada headwater near Lanjarón, best treated within the same metamorphic mountain template as Trevélez and Poqueira.

Poor · Brown Trout
Foam Beetle · 14-18
Poorlive now
Not the day for it
River temperature is the limiting factor today, not the flow. This is not the day to push it. Check the thermal advice above before you head out.
90% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp22.5°C
  • ClarityClear
Today’s fly
Foam Beetle
Foam Beetle14-18
Proven pattern for this period
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp22.5°C
ClarityClear
Weather28°C
WindSE 7 km/h
Pressure1018 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

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

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.
Sub-surface · on the nymphunder the surface

Hatch predictions

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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
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
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
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.
  • Junta de Andalucía licence required
  • On Sierra Nevada / Alpujarras headwaters, confirm the exact open stretch, coto status, and any National Park or local restrictions before travel.
What's coming
Plan ahead
5-day outlook
Water here around 23°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. Río Lanjarón — Río Lanjarón river (DSCF5984)
    Río Lanjarón river (DSCF5984)
  2. Terrain map of the venue
    Terrain map
About this water

A compact Sierra Nevada headwater near Lanjarón, best treated within the same metamorphic mountain template as Trevélez and Poqueira. Cold snow-fed water, steep gradient, and short plunge-pool structure create a compressed practical season and a much tighter tactical style than on the Cazorla limestone cotos.

  • Schist metamorphic
Water quality (WFD)
  • Ecology: Good
  • Chemical: Unknown
What this classification means

WFD ecological status Moderate → Good corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody ES060MSPF0632120 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · ES060MSPF0632120

The full read · show the working · for brown trout · confidence 90%
How the 8 is built — score × weight = contribution
Temperature4 × 28%1.1
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity40 × 12%4.8
Limiting factor: Water temperature (22.5°C) is outside Brown Trout's preferred range (10–16°C)= 47
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
  • TroutMay shoulder / June core window (practical) → July shoulder, occasionally later in lower sections
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts