Mayflies
Stoneflies
Gammarids
- Ecology: Good
- Chemical: Unknown
WFD classification · ES091MSPF621
Rules at a glance
- Public water
- Licence required
Water temperature for Brown Trout
Cool — slow10°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.
Likely species
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 6 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
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
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.
- Se requiere licencia catalana de pesca
- Las aguas trucheras controladas pueden exigir un permiso ZPC, y las fechas legales varían entre sectores de baja montaña, alta montaña, con muerte y sin muerte, así que comprueba la normativa vigente de la Generalitat para la zona exacta.
What's coming
Plan ahead
5-day outlook
Fishing better nearby · 5
Gallery · 2
Terrain map
Water quality (WFD)
The full read · show the working · for Brown Trout · confidence 75%
How the 0 is built — score × weight = contribution
Temperature96 × 28%26.9
Flow40 × 22%8.8
Clarity95 × 18%17.1
Feeding Time45 × 13%5.9
Pressure80 × 7%5.6
Insect activity28 × 12%3.4
Conditions total= 68
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Noguera Pallaresaproxy
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 9 May → 12 October
Related guides
Booking & contacts
Upper Segre
Water temperature for Brown Trout
Cool — slow10°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.
Likely species
Hatch timeline · todayQuiet day
Hatch predictions
Today's headline hatch shown — see all 6 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
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
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.
- Se requiere licencia catalana de pesca
- Las aguas trucheras controladas pueden exigir un permiso ZPC, y las fechas legales varían entre sectores de baja montaña, alta montaña, con muerte y sin muerte, así que comprueba la normativa vigente de la Generalitat para la zona exacta.
What's coming
Plan ahead
5-day outlook
Fishing better nearby · 5
Gallery · 2
Terrain map
Water quality (WFD)
- Ecology: Good
- Chemical: Unknown
WFD classification · ES091MSPF621
The full read · show the working · for Brown Trout · confidence 75%
How the 0 is built — score × weight = contribution
Temperature96 × 28%26.9
Flow40 × 22%8.8
Clarity95 × 18%17.1
Feeding Time45 × 13%5.9
Pressure80 × 7%5.6
Insect activity28 × 12%3.4
Conditions total= 68
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Noguera Pallaresaproxy
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
- Trout 9 May → 12 October
Related guides
Booking & contacts