Tailwater · Mixed · Castilla y León / Salamanca (below Santa Teresa reservoir), ES

Río Tormes (Santa Teresa trout beats — Salamanca)

Río Tormes (Santa Teresa trout beats — Salamanca) — Aceña del Arrabal
Today · Not the day for it
Coch-y-bonddu
Forecast · Today
Not the day for it
Not much stacked in your favour today. Worth an hour if you are nearby, not worth the special trip.
45% projected
Today's fly
Coch-y-bonddu
Coch-y-bonddu
Conditions on the water · Today
Live gauge
Flow
Rising
5.1 m³/s
Lifting fast
Water temp11.2°C
ClarityUnfishable
Weather20°C
WindN 9 km/h
Pressure1020 hPa
Rain · recent1.3 mm
Rain · ahead0.0 mm

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

Water temperature for Brown Trout
Ideal
11°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Castilla y León trout season — opens 3rd Sunday of March, closes 31 July. Spring olives April through May; summer sedges in evening hours; sin muerte stretches extend through autumn.
Where
Santa Teresa trout beats below the reservoir; cooler reservoir releases keep fish moving into the warm months. Pool tails, riffle heads, and the seams behind boulders.
Method
Upstream dry to risers; dry-dropper through the riffles. The Tormes runs clear granite water — long leader, fine tippet, careful approach.
Kit
9 ft #4 — Spanish granite spate default. Floating line, 12 ft leader to 4 lb fluoro. Studded boots — granite cobble runs slick.
Why this works
Excellent — water temperature is right today, though time of day could be better.
Likely species
Mayflies
Hatch timeline · todayPeak at 2pm

12pm(now) — Black Midge

Stage: On emergersApproach: Emerger or dryActivity: 21%

Peak activity at 2pm — Brown Sedge (Brown Sedge, Weather boost)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 4 guilds with Pro.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

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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
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Summer River MidgeHatch
2
3
3
3
2
Large Dark OliveHatch
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.
  • Se requiere licencia de pesca de Castilla y León
  • Hay cuatro cotos en el Tormes en la provincia de Salamanca, todos bajo regímenes mixtos o de captura y suelta
  • La Junta indica que la mayoría de estos tramos exigen captura y suelta para la trucha
  • Los tramos de libre acceso son, en general, sin muerte con licencia en vigor
  • Comprueba el mapa y la orden anual de tramos de Castilla y León antes de viajar: el detalle es específico de cada tramo.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Embalse de Santa Teresa
8.0 km
Barbel · Carp · Pike
Río Tormes — Villagonzalo II (Hucho)
18 km
0
Brown trout · Barbel
Reservoirs near Salamanca / lower Tormes
20 km
Rainbow trout · Brown trout
Río Corneja system (research priority)
30 km
Brown trout
Zapardiel de la Ribera
37 km
Brown trout
Gallery · 2
  1. Río Tormes (Santa Teresa trout beats — Salamanca) — Aceña del Arrabal
    Aceña del Arrabal
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 83 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity63 × 12%7.6
Conditions total= 83
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Barbel 1 January → 31 December

    Barbel is fishable year-round in Castilla y León's aguas libres, but a mandatory catch-and-release (zero-kill) window applies 1 May–15 July each year to protect spawning — anglers must release all barbel caught in that period (Orden MAV/1506/2025). This is a harvest rule, not a closure, so the season stays open throughout the year.

Related guides
Pyrenees PlaybookSpanish riversEuro Nymphingsubsurface methods
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