Spate · Mixed · Aragón

Río Gállego

Río Gállego terrain map
Terrain map

The Gállego rises near the French border and takes its time getting to Aragón — a proper Pyrenean river that passes through high country before it moderates into the managed beats below Sabiñánigo.

Marginal · Brown Trout
Klinkhammer · 14-18
Marginallive now
Slow going — pick your moments
River steady at a fishable height. Take your time — read the water before you cast.
80% confidence
What moved it
  • Level0.64 mDropping in the last 6h
  • Water temp18.1°C
  • ClarityClear
Today’s fly
Klinkhammer
Klinkhammer14-18
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
0.64 m
Dropping in the last 6h
Water temp18.1°C
ClarityClear
Weather18°C
WindN 10 km/h
Pressure1022 hPa
Rain · recent1.1 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
18°C est.ideal 1016°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 18.1°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots. Otherwise poor — water clarity is in the right range.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 9 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
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2
Yellow SallyHatch
2
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.
  • Aragón fishing licence required
  • Named cotos, social cotos, and special high-mountain sections can have different dates, permit allocations, and method rules, so check the current Aragón plan for the exact beat.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 2
Water here around 18°C — probably warm enough to stress brown trout. These are likely cooler.
About this water

The Gállego rises near the French border and takes its time getting to Aragón — a proper Pyrenean river that passes through high country before it moderates into the managed beats below Sabiñánigo. The catch-and-release sections hold serious wild brown trout in water that runs cold from the snowfields well into July. The fish here come from altitude, clarity, and a diet of real insects, and they behave accordingly. The Alto Gállego is the part worth knowing: above the reservoirs, where the Pyrenean character is intact and the trout have not yet learned to be accommodating.

  • Mixed
The full read · show the working · for brown trout · confidence 80%
How the 39 is built — score × weight = contribution
Temperature54 × 28%15.1
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time45 × 13%5.9
Pressure80 × 7%5.6
Insect activity57 × 12%6.8
Conditions total= 68
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
Seasons & zones
  • Troutcheck named Aragón coto or free section → check named Aragón coto or free section
Related guides
Booking & contacts