Mountain Freestone · Limestone · Andalucía / Jaén (Sierra de Cazorla), ES

Upper Guadalquivir

Upper Guadalquivir terrain map
Good · Brown Trout
Woolly Bugger · 10-12
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
75% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp17.7°C
  • ClarityClear
Today's fly
Woolly Bugger
Woolly Bugger10-12
Proven pattern for this period
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp17.7°C
ClarityClear
Weather24°C
WindNW 12 km/h
Pressure1020 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
18°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
Good — water clarity is right today, though water temperature could be better.
Hatch timeline · todayPeak at 6am

Hatch predictions

Today's headline hatch shown — see all 7 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(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 · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
2
2
2
2
1
Blue Winged OliveHatch
1
2
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.
  • Junta de Andalucía licence required
  • Sierra de Cazorla natural park rules apply in addition to standard trout regulations.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Río Borosa
7.0 km
0
Brown trout
Guadalquivir (upper / Cazorla headwaters)
9.0 km
Brown trout · Rainbow trout
Río Castril
20 km
83
Brown trout
Río Madera (Bajo)
36 km
Brown trout
Río Zumeta
39 km
Brown trout
The full read · show the working · for Brown Trout · confidence 75%
How the 67 is built — score × weight = contribution
Temperature49 × 28%13.7
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity62 × 12%7.4
Conditions total= 67
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.
Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
Booking & contacts