Mayflies
- Ecology: Moderate
- Chemical: Unknown
Rules at a glance
- Public water
- Licence required
Water temperature for Brown Trout
Ideal11°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Castilla y León trout season. The Villagonzalo II beat fishes the lower Tormes — cooler than the Salamanca-end water but warmer than the Gredos headwaters.
Where
Villagonzalo II beat through the lower river. 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 insect activity could be better.
Likely species
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 9 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
See the full sub-surface read with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 2 with Pro.
Start free trial14-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 · 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.
- Castilla y León fishing licence + specific Villagonzalo II coto permit required
- The Junta identifies this as the unique legal hucho coto in Spain
- Rules may differ from the adjacent trout beats — verify the annual order
- Conservation rules apply; the hucho population is maintained by managed releases.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Barco de Ávila Terrain map
Water quality (WFD)
The full read · show the working · for Brown Trout · confidence 90%
How the 84 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity58 × 12%7.0
Conditions total= 84
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
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
Booking & contacts
Río Tormes — Villagonzalo II (Hucho)
Water temperature for Brown Trout
Ideal11°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Castilla y León trout season. The Villagonzalo II beat fishes the lower Tormes — cooler than the Salamanca-end water but warmer than the Gredos headwaters.
Where
Villagonzalo II beat through the lower river. 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 insect activity could be better.
Likely species
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 9 active hatches hour by hour with Pro.
Start free trial14-day free trial. Cancel anytime.
Sub-surface · on the nymphunder the surface
Hatch predictions
See the full sub-surface read with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey(1)
Hatch predictions
Top prey shown — see all 2 with Pro.
Start free trial14-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 · 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.
- Castilla y León fishing licence + specific Villagonzalo II coto permit required
- The Junta identifies this as the unique legal hucho coto in Spain
- Rules may differ from the adjacent trout beats — verify the annual order
- Conservation rules apply; the hucho population is maintained by managed releases.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Barco de Ávila Terrain map
Water quality (WFD)
- Ecology: Moderate
- Chemical: Unknown
The full read · show the working · for Brown Trout · confidence 90%
How the 84 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity58 × 12%7.0
Conditions total= 84
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
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
Booking & contacts