Spate · Granite · Brittany / Finistère (Quimper)

Steir

Steir terrain map
Terrain map

Brittany river with wild trout on Armorican granite.

Species

A side-water session, not the main event

Low and clear — careful approach country. Long leader, small flies, slower casts.

75% confidence in this read
Water temperature for brown trout
Cool — slow
8°C est.ideal 10–16°C
0°14°28°
Why this score · for brown trout
  • Temperature5728% weight
  • Flow6022% weight
  • Clarity9518% weight
  • Feeding Time5013% weight
  • Pressure807% weight
  • Prey Activity3112% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
7.5°C
Estimated
Clarity
Clear
Air temp
11°C
Wind
NW 15 km/h
Gentle breeze
Pressure
1013 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
8.1 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 conditions. Clarity is favourable (95), Prey activity is weakest (31).
Through the year
0–3 scale · May 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.

Permits & access
Permit required — see local rules.
  • AAPPMA permits.
Directions
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About this water

Brittany river with wild trout on Armorican granite. Fly-fishing potential on designated beats. Spring through early autumn fishing best when water volume and insect activity support dry-fly work. Intimate water, not high-volume, but worthwhile for those seeking quiet and wild fish. Check with local AAPPMA for access and any restrictions.

  • Granite
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.

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