Rules at a glance
- Public water
- Licence required
Water temperature for Brown Trout
Ideal15°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
Good — water temperature is working for you, but river flow is the limiting factor today.
Likely species
Gammarids
Hatch timeline · todayPeak at 18:00
12:00(now) — Black Gnat
Stage: On emergersApproach: Emerger or dryActivity: 52%
Also:Autumn Needle Fly28%Autumn Dun25%Cinnamon Sedge23%
Peak emergence window8 food groups active
Peak activity at 18:00 — Caperer (Caperer, Weather boost)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
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
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
Top
22-24 · Pattern
Upstream dry, on top
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
- Se requiere licencia de pesca asturiana.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 3
Rio España near the beach 
Rio España near the beach Terrain map
The full read · show the working · for Brown Trout · confidence 75%
How the 78 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow40 × 22%8.8
Clarity95 × 18%17.1
Feeding Time85 × 13%11.1
Pressure80 × 7%5.6
Insect activity60 × 12%7.2
Conditions total= 78
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Río Linaresproxy
Prey activitysurvey-backed invertebrate datasurvey
Directions
Related guides
Booking & contacts
Río España
Water temperature for Brown Trout
Ideal15°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
Good — water temperature is working for you, but river flow is the limiting factor today.
Likely species
Hatch timeline · todayPeak at 18:00
12:00(now) — Black Gnat
Stage: On emergersApproach: Emerger or dryActivity: 52%
Also:Autumn Needle Fly28%Autumn Dun25%Cinnamon Sedge23%
Peak emergence window8 food groups active
Peak activity at 18:00 — Caperer (Caperer, Weather boost)
Sub-surface · on the nymphunder the surface
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
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
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
Top
22-24 · Pattern
Upstream dry, on top
Permits & access
Free state water
State rod licence required for trout / salmon as applicable.
- Se requiere licencia de pesca asturiana.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 3
Rio España near the beach Rio España near the beach Terrain map
The full read · show the working · for Brown Trout · confidence 75%
How the 78 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow40 × 22%8.8
Clarity95 × 18%17.1
Feeding Time85 × 13%11.1
Pressure80 × 7%5.6
Insect activity60 × 12%7.2
Conditions total= 78
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Río Linaresproxy
Prey activitysurvey-backed invertebrate datasurvey
Directions
Related guides
Booking & contacts