Spate · Limestone · Asturias, Spain

Río Ponga

Foz de la Porquera, Ponga, Asturias 1
Marginal · Brown Trout
Small Chironomid · 22-24
Marginallive now
Slow going — pick your moments
Low and clear — careful approach country. Cover and shadow are doing the work today.
50% confidence
What moved it
  • Level0.15 mLast reading 5h ago
  • Water temp13.4°C
  • ClarityClear
Today's fly
SC
Small Chironomid22-24
Upstream dry, on top
Conditions on the water
Live gauge
Level
Steady
0.15 m
lowspate
Water temp13.4°C
ClarityClear
Weather14°C
WindS 9 km/h
Pressure1023 hPa
Rain · recent0.0 mm
Rain · ahead0.1 mm

The nearest gauge is at Santillán. It doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Ideal
13°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
Poor — water temperature is working for you, but river flow is the limiting factor today.
Likely species
Gammarids
Hatch timeline · todayQuiet day

Hatch predictions

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Sub-surface · on the nymphunder the surface

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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 · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
1
March BrownHatch
2
3
2
Late March BrownHatch
2
3
2
Large Brook DunHatch
2
3
2
Large StoneflyHatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Fly box · Brown Trout
SC
Small ChironomidTop
22-24 · Pattern
Upstream dry, on top
Beats · 1
Santillán · 1.8 kmC&R trout
C&R trout stretch — Desembocadura río Melón to Confluencia río Sella.
Beat detail
Daily permit required, all fish returned
Upstream: Desembocadura río Melón
Downstream: Confluencia río Sella
Santillán beat map
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
  • Se requiere licencia de pesca asturiana
  • Partes del valle del Ponga pueden tener estatus especial de conservación.
What's coming
Plan ahead
5-day outlook
Fishing better nearby · 5
Río Piloña
23 km
77
Brown trout · Salmon · Sea trout
Río Güeña
17 km
71
Brown trout
Río Sella
17 km
70
Brown trout · Salmon · Sea trout
Río Dobra
12 km
30
Brown trout
Embalse de Tanes
16 km
Brown trout
Gallery · 2
  1. Foz de la Porquera, Ponga, Asturias 1
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Brown Trout · confidence 50%
How the 30 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow15 × 22%3.3
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity18 × 12%2.2
Limiting factor: River is stable — Brown Trout prefers medium flow= 61
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
A drop and clear would lift the flow and clarity scores.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout Tercer Sunday de May → 15 August

    The Ponga is a headwater tributary of the Sella, rising in Ponga Natural Park well above the Sella's salmon-zone refuge limit, so it sits in the mountain-zone tributary network. Mountain-zone trout (zona de alta montaña): opens Third Sunday of May, not the general 15 March, minimum size 17cm (vs. 19cm general). Asturian regulation classifies any tributary joining above a salmon river's designated zone-limit point as alta montaña water. Inferred here from confluence position, not a verified lookup against the official cotos map (pescafluvial.asturias.es) — confirm before treating as final.

Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
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