Spate · Granite · Brittany / Côtes-d'Armor (Trégor)

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Brittany river on granitic bedrock.

Good · Brown Trout
CDC Emerger · 16-18
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
90% confidence
What moved it
  • Level0.37 mLast reading 12h ago
  • Water temp17.7°C
  • ClarityClear
Today’s fly
CDC Emerger
CDC Emerger16-18
Dead-drift
Conditions on the water
Live gauge
Level
Steady
0.37 m
Last reading 12h ago
Water temp17.7°C
ClarityClear
Weather20°C
WindW 18 km/h
Pressure1023 hPa
Rain · recent0.0 mm
Rain · ahead0.3 mm

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

Water temperature for brown trout
Warm — slow
18°C est.ideal 10–16°C
0°14°28°
How to fish it · for brown trout
When
Through the open trout season. Spring olives and sedges through May; summer evenings; small dark flies into autumn close.
Where
Pool tails and pocket water through the Côtes-d'Armor valley. Once one of Brittany's premier sea-trout rivers; the sea-trout fishery is now closed under the 2026 Brittany order, but brown-trout fishing remains.
Method
Upstream dry to risers; dry-dropper through the riffles. Breton spate freestone — fish 12 to 24 hours after rain on the drop. Long leader, fine tippet.
Kit
9 ft #4 — Breton spate freestone. Floating line, 12 ft leader to 4 lb fluoro. Studded boots.
Why this works
Good — water clarity is right today, though insect activity could be better.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 7 active hatches hour by hour with Pro.

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Evidence
Survey-backed · regionalModerate confidence

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

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Salmon runRun
1
2
2
2
2
2
1
Trout seasonSeason
1
2
2
2
2
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.

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • AAPPMA permits.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Trieux
25 km
75
Brown trout · Salmon · Sea trout
Étang Neuf (Saint-Connan)
31 km
Rainbow trout · Brown trout
Lac Saint-Michel (Brennilis)
42 km
Rainbow trout · Pike
Aulne
46 km
Brown trout · Salmon · Sea trout
Lac du Drennec
47 km
Brown trout · Rainbow trout · Pike
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Brittany river on granitic bedrock. Wild brown trout water with fly-fishing opportunity. Spring through early summer offers best dry-fly potential when seasonal hatches activate. Responsive to Atlantic rainfall for water volume. Check local AAPPMA for public access details and any regulations or catch-and-release requirements.

  • Granite
Water quality (WFD)
  • Ecology: Good
  • Chemical: Unknown

WFD classification · FRGR0047

The full read · show the working · for brown trout · confidence 90%
How the 74 is built — score × weight = contribution
Temperature62 × 28%17.4
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure80 × 7%5.6
Insect activity57 × 12%6.8
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
Apple MapsGoogle Maps
Seasons & zones
  • Salmon1 March → 15 September
  • Trout2nd Saturday of March → 3rd Sunday of September

Salmon: Banned (2026) — Brittany 2026 order bans Atlantic salmon and sea trout on all Breton rivers.

Sea trout: Banned (2026) — Brittany 2026 order bans Atlantic salmon and sea trout on all Breton rivers.

Related guides
Pyrenees PlaybookFrench riversEuro Nymphingsubsurface methods
Booking & contacts