Spate · Granite · Brittany / Finistère (Quimper)

Odet

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Brittany river near Quimper on granitic Armorican bedrock.

Marginal · Brown Trout
CDC Emerger · 16-18
Slow going — pick your moments
River lifting fast on the rain. Take your time — read the water before you cast.
45% confidence
limited data
What moved it
  • Level1.47 mLifting fast
  • Water temp15.8°C
  • ClarityVery colouredColouring up
Today’s fly
CDC Emerger
CDC Emerger16-18
Dead-drift
Conditions on the water
Live gauge
Level
Rising
1.47 m
Lifting fast
Water temp15.8°C
ClarityVery coloured
Weather17°C
WindSW 4 km/h
Pressure1025 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

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

Water temperature for brown trout
Ideal
16°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
Poor — water temperature is working for you, but water clarity is the limiting factor today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 3 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
Fishing better nearby · 5
Scorff
38 km
78
Brown trout · Salmon · Sea trout
Aven
31 km
75
Brown trout · Sea trout
Steir
< 1 km
Brown trout · Salmon · Sea trout
Jet
10 km
Brown trout · Salmon · Sea trout
Aulne
36 km
Brown trout · Salmon · Sea trout
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

Brittany river near Quimper on granitic Armorican bedrock. Wild trout water with fly-fishing opportunity on accessible beats. Spring through early autumn fishing. Spate character means good flow after Atlantic rainfall. Some sections may be private; check AAPPMA for public access and regulations.

  • Granite
Water quality (WFD)
  • Ecology: Good
  • Chemical: Failing to achieve good
What this classification means

WFD re-coded 2026-06-18: prior id FRGR0083 actually identifies the Jet — this river was mis-tagged to a neighbouring water body. Re-mapped to FRGR0078. Status: EEA WISE 2022 (3rd RBMP). Confidence: high — single Odet water body. Source: discodata.eea.europa.eu.

WFD classification · FRGR0078

The full read · show the working · for brown trout · confidence 45%
How the 30 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow30 × 22%6.6
Clarity15 × 18%2.7
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity24 × 12%2.9
Limiting factor: Water is very coloured — too coloured for Brown Trout= 56
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
A drop and clear would lift the flow and clarity scores.
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