Spate · Granite · Brittany / Finistère (Quimper), FR

Steir

The narrow Steir river channel lined with medieval stone and slate-roofed buildings in Quimper, France.

Brittany river with wild trout on Armorican granite.

Today · Closed season
Stonefly Nymph
New ruleReported 7 Aug 2026

Severe drought restrictions (crise) in force

VigiEau lists this venue's surface-water zone (ODET, dépt 29) at crise, under an official préfectoral drought arrêté. Fishing is not itself banned by it, but water levels are low — go gently on stressed fish.

Arrêté préfectoral n°37652 ↗

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date. Always confirm locally before travelling.

Forecast · Today
Closed season
Out of season. Try elsewhere.
45% projected
Today's fly
Stonefly Nymph
Stonefly Nymph
Conditions on the water · Today
Live gauge
Level
Rising
0.05 m
Lifting fast
Water temp9.1°C
ClarityUnfishable
Weather5°C
WindN 13 km/h
Pressure1013 hPa
Rain · recent0.0 mm
Rain · ahead7.4 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
Cool — slow
9°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.
Likely species
Stoneflies
Gammarids
Hatch timeline · todayPeak at 11am

12pm(now) — Autumn Needle Fly

Stage: Creeping nymphsApproach: Heavy nymphActivity: 36%
Also:Autumn Olive21%
Peak emergence window

Peak activity at 11am — Autumn Needle Fly (Autumn Needle Fly, Peak emergence window)

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds as a supporter.

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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 · November highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
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

More balanced than the mountain-river pack. French nymphing still matters, but there is more room for dries, spiders and general searching flies.

Permits & access
Permit required — see local rules.
  • AAPPMA permits.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Jet
10 km
0
Brown trout · Salmon · Sea trout
Aven
31 km
0
Brown trout · Sea trout
Aulne
38 km
0
Brown trout · Salmon · Sea trout
Isole
43 km
0
Brown trout · Salmon · Sea trout
Odet
< 1 km
Brown trout · Salmon · Sea trout
Gallery · 2
  1. The narrow Steir river channel lined with medieval stone and slate-roofed buildings in Quimper, France.
    View of the old town over the river Steir in the city Quimper
  2. Terrain map of the venue
    Terrain map
About this water

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.

Hatches & food

On Atlantic trout rivers in Normandy and Brittany, regional studies and on-the-bank experience point to spring mayflies as the main early driver, a strong band of spring and early-summer caddis as channels warm and open, background buzzer life ticking away right through the year, and terrestrials from wooded banks adding important surface food in summer and early autumn, with autumn olives extending sport wherever trout-season rules allow.

  • Granite
Water quality (WFD)
  • Ecology: High
  • Chemical: Unknown
What this classification means

WFD ecological status Good → High corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody FRGR0084 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · FRGR0084

The full read · show the working · for Brown Trout · confidence 75%
How the 0 is built — score × weight = contribution
Temperature80 × 28%22.4
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity29 × 12%3.5
Conditions total= 71
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 2nd 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
At a glance

Steir is a spate river in Brittany / Finistère (Quimper), France. The catchment geology is recorded as granite, and the water sits at about 15 m above sea level. The river is described as roughly 30 km long. Species listed for this water: brown trout, salmon and sea trout. The salmon season is recorded as running from CLOSED to CLOSED. The trout season is recorded as running from 2nd Saturday of March to 3rd Sunday of September. Best window recorded for anglers: March–September for trout. Core methods listed: nymphing; dry fly; small wet fly. Level and flow data for this water is linked from 1 gauge. Its Water Framework Directive ecological status is recorded as high. Access is recorded as day tickets through the local AAPPMA (angling association). Nearby waters in our listings include Odet at < 1 km, Jet at 10 km and Aven at 31 km.