Rules at a glance
- Public water
- Licence required
- Fly only
Water temperature for Brown Trout
Cool — slow8°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Castilla y León trout season. Spring olives April through May; summer sedges in evening hours; small dark flies into autumn close.
Where
Pool tails and pocket water through the Segovian valley. The Cega runs from the Guadarrama — clear granite water, intimate scale.
Method
Upstream dry to risers; dry-dropper through the riffles. The water reads clear — long leader, fine tippet, careful approach.
Kit
9 ft #4 — Castilian default. Floating line, 12 ft leader to 4 lb fluoro. Studded boots — granite cobble runs slick.
Likely species
Stoneflies
Gammarids
Hatch timeline · tomorrowPeak at 13 Uhr
12 Uhr(now) — Autumn Needle Fly
Stage: Creeping nymphsApproach: Heavy nymphActivity: 46%
Also:Black Midge44%Autumn Olive39%
Peak emergence windowWeather boost6 food groups active
Peak activity at 13 Uhr — Iron Blue (Iron Blue, Weather boost)
Sub-surface · on the nymphunder the surface
Hatch predictions
Supporters see the full sub-surface read.
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 · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
1
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
Fly box · Brown Trout
Permits & access
Permit required — see local rules.
- Castilla y León fishing licence required
- Las Pegueras and Puente Segoviano cotos require additional tramo permits; both have fly-only and/or sin muerte stretches
- JCyL pesca visor is the source of truth.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Río Cega 1 Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature78 × 28%21.8
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity55 × 12%6.6
Conditions total= 73
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
Seasons & zones
- Trout Letzter Sunday im March → 31 July
Related guides
Booking & contacts
Río Cega
Water temperature for Brown Trout
Cool — slow8°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the Castilla y León trout season. Spring olives April through May; summer sedges in evening hours; small dark flies into autumn close.
Where
Pool tails and pocket water through the Segovian valley. The Cega runs from the Guadarrama — clear granite water, intimate scale.
Method
Upstream dry to risers; dry-dropper through the riffles. The water reads clear — long leader, fine tippet, careful approach.
Kit
9 ft #4 — Castilian default. Floating line, 12 ft leader to 4 lb fluoro. Studded boots — granite cobble runs slick.
Likely species
Hatch timeline · tomorrowPeak at 13 Uhr
12 Uhr(now) — Autumn Needle Fly
Stage: Creeping nymphsApproach: Heavy nymphActivity: 46%
Also:Black Midge44%Autumn Olive39%
Peak emergence windowWeather boost6 food groups active
Peak activity at 13 Uhr — Iron Blue (Iron Blue, Weather boost)
Sub-surface · on the nymphunder the surface
Hatch predictions
Supporters see the full sub-surface read.
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 · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
1
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
Fly box · Brown Trout
Permits & access
Permit required — see local rules.
- Castilla y León fishing licence required
- Las Pegueras and Puente Segoviano cotos require additional tramo permits; both have fly-only and/or sin muerte stretches
- JCyL pesca visor is the source of truth.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
Río Cega 1 Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature78 × 28%21.8
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity55 × 12%6.6
Conditions total= 73
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
Directions
Seasons & zones
- Trout Letzter Sunday im March → 31 July
Related guides
Booking & contacts