Spate · Granite · Galicia (A Coruña

Río Mero

Río Mero venue image
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An A Coruña sea-trout river falling east-to-west from the Sierra de Domaio through Abegondo to the Ría de Betanzos.

Species

A proper day on the water

Low and clear — careful approach country. Stay small, stay accurate.

75% confidence in this read
Water temperature for brown trout
Ideal
12°C est.ideal 10–16°C
0°14°28°
Why this score · for brown trout
  • Temperature10028% weight
  • Flow6022% weight
  • Clarity9518% weight
  • Feeding Time5013% weight
  • Pressure807% weight
  • Insect activity3912% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
11.5°C
Estimated
Clarity
Clear
Air temp
15°C
Wind
SW 20 km/h
Moderate breeze
Pressure
1018 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
2.7 mm
Light rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

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 insect activity is the limiting factor today.
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Sea trout runRun
1
2
1
Trout seasonSeason
1
2
1
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2
Yellow SallyHatch
2
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Gallery · 1
  1. Terrain map of the venue
    Terrain map
Permits & access
Permit required — see local rules.
  • Galician licence required
  • Betanzos coto allocation on the lower beats.
Directions
Apple MapsGoogle Maps
About this water

An A Coruña sea-trout river falling east-to-west from the Sierra de Domaio through Abegondo to the Ría de Betanzos. The Mero is granite freestone water through the middle reaches around Cambre, with the lower river joining the parallel Mendo at Betanzos. Wild brown trout throughout; reo running into the lower river around Cambre and Betanzos from July onwards.

  • Granite
Seasons & zones
  • Sea trout1 May → 31 July
  • Trout1 May → 31 July
Other water nearby · 5