Limestone · Limestone Karst · Jaén, ES

Río Zumeta

Río Zumeta venue image

Crystal-clear limestone tributary of the Segura in the Cazorla-Segura Natural Park; single barbless fly only on some stretches.

Today · Closed season
Woolly Bugger
Forecast · Today
Closed season
Out of season. Try elsewhere.
45% projected
Today's fly
Woolly Bugger
Woolly Bugger
Conditions on the water · Today
Proxy gauge
Level
Rising
Proxy
via Río Castril
Water temp6.6°C
ClarityUnfishable
Weather16°C
WindN 11 km/h
Pressure1021 hPa
Rain · recent4.5 mm
Rain · ahead5.1 mm

No gauge on this water — conditions are inferred from Río Castril. The trend transfers, the absolute level does not.

Water temperature for Brown Trout
Cool — slow
7°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.
Likely species
Hatch timeline · todayPeak at 10am

12pm(now) — Black Midge

Stage: On emergersApproach: Emerger or dryActivity: 30%
Peak emergence window3 food groups active

Peak activity at 10am — Black Midge (Black Midge, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

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14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 as a supporter.

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14-day free trial. Cancel anytime.

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
Brown SedgeHatch
2
3
3
3
2
Small SpurwingHatch
2
3
3
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Small Dark OliveHatch
2
3
3
3
2

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 plus trout surcharge required
  • Confirm the exact local stretch status and any fly-only or single-barbless rules before travel.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Crystal-clear limestone tributary of the Segura in the Cazorla-Segura Natural Park; single barbless fly only on some stretches.

  • Limestone karst
The full read · show the working · for Brown Trout · confidence 75%
How the 0 is built — score × weight = contribution
Temperature46 × 28%12.9
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity58 × 12%7.0
Conditions total= 69
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Río Castrilproxy
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Warmer water — toward the 10–16 °C ideal band — would lift the temperature score.
Directions
Seasons & zones
  • Trout durante los periodos hábiles (check current BOJA) → during the designated open period
Related guides
Booking & contacts