Spate · Granite · Galicia

Mandeo

Río Mandeo venue image
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A compact, highly responsive heritage salmon river near Betanzos where salmon are now depleted and out of bounds.

Species

Decent — worth a look

Low and clear — careful approach country. Low water tactics — small singles, riffling hitch in the smooth glides.

75% confidence in this read
Water temperature for sea trout
Cool — slow
7°C est.ideal 8–15°C
0°14°28°
Why this score · for sea trout
  • Temperature6428% weight
  • Flow6022% weight
  • Clarity8518% weight
  • Feeding Time5013% weight
  • Pressure857% weight
  • Prey Activity2512% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
6.7°C
Estimated
Clarity
Clear
Air temp
9°C
Wind
W 9 km/h
Light breeze
Pressure
1019 hPa
Rain · 48h
0.5 mm
No meaningful rain
Rain · ahead
1.3 mm
No meaningful rain · next 48h

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

How to fish it · for sea trout
When
Reo season 1 May to 31 July. Fish enter on a rising tide and rain; the Mandeo is small and rainfall-dependent. Stocks fragile — don't oversell the river to yourself.
Where
Lower Mandeo and the Betanzos estuary. Pool tails and the tidal margins where reo settle on the run.
Method
Across-and-down on a floating line with small wets. Time the rising tide; fish the dropping water after rain. Catch-and-release recommended on this fragile residual fishery.
Kit
10 ft #6, floating line, 8 lb fluoro tippet. Spare leader on a wrist spool.
Why this works
Good conditions. Clarity is favourable (85), Prey activity is weakest (25). ⏰ Sea trout become most active after dark, but this stretch closes at 20:24 — before that window fully opens. Fish hard in the last legal hour: overcast skies and warm evenings can bring fish on early even in fading light.
Through the year
0–3 scale · May 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 fishing licence required
  • Additional coto or tramo permit may be needed depending on the beat
  • Check current Xunta rules before travel; salmon heritage does not make salmon a legal target.
Directions
Apple MapsGoogle Maps
About this water

A compact, highly responsive heritage salmon river near Betanzos where salmon are now depleted and out of bounds. Smaller than the Ulla or Tambre, it still offers concentrated trout-and-sea-trout fishing, especially after rain, with a quick 5-hour response that can create short but worthwhile windows. Sea trout in the lower river and estuary now make more practical sense than any salmon-led framing.

  • Granite
Seasons & zones
  • Sea trout1 May → 31 July
  • Trout1 May → 31 July

Sea trout: Variable seasonal (2026) — Reo present in the lower Mandeo and estuary. Salmon depleted and prohibited. Sea trout are a residual fishery — occasional, water-dependent, not a promoted primary species.

Salmon: Heritage only (2026) — Salmon fishing banned in Galicia by 2026 Xunta decree. Heritage salmon river — not a salmon fishing destination.

Other water nearby · 5
Booking & contacts