Spate · Granite · Galicia (Pontevedra, ES

Río Umia

Río Umia — Segade Waterfall, Umia River (Fervenza de Segade)

A Salnés sea-trout river falling from Cuntis through Caldas de Reis to the Ría de Arousa at Cambados.

Today · Closed season
Black Gnat
Forecast · Today
Closed season
Out of season. Plenty of other water available now.
90% projected
Today's fly
Black Gnat
Black Gnat
Conditions on the water · Today
Live gauge
Level
Falling
0.72 m
Dropping after lift
Water temp16.2°C
ClarityClearing
Weather21°C
WindN 12 km/h
Pressure1022 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Warm — slow
16°C est.ideal 1016°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.
Hatch timeline · todayPeak at 12pm

12pm(now) Heather Fly

Stage: Terrestrials on topApproach: Dry flyActivity: 95%
Also:Reed Smut83%Cinnamon Sedge49%Autumn Dun43%
Peak emergence windowWeather boost10 food groups active

Peak activity at 12pm — Heather Fly (Heather Fly, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 3 with Pro.

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Evidence
Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · September 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
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
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • Galician licence required
  • Salnés annex applies — check Caldas de Reis coto allocation.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
  1. Río Umia — Segade Waterfall, Umia River (Fervenza de Segade)
    Segade Waterfall, Umia River (Fervenza de Segade)
  2. Terrain map of the venue
    Terrain map
About this water

A Salnés sea-trout river falling from Cuntis through Caldas de Reis to the Ría de Arousa at Cambados. The Umia is a quintessential lower-Galicia reo system — granite freestone water with the spa-spring influence of Caldas de Reis. Wild brown trout in the middle and upper reaches; sea trout running into the lower river from July onwards. Heavily fished by local anglers but reliable through May and June.

Hatches & food

In Galicia's Atlantic trout rivers, resident browns feed through a spring build-up of olives and other up-wings into a long summer of caddis and small buzzers, with frequent spates and cool water keeping fish active; terrestrials from lush banks and meadows become important once levels settle and the banks green up.

  • Granite
The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature51 × 28%14.3
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time85 × 13%11.1
Pressure80 × 7%5.6
Insect activity66 × 12%7.9
Conditions total= 74
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
Directions
Seasons & zones
  • Sea trout 1 May31 July
  • Trout 1 May31 July
Related guides
Booking & contacts