Spate · Granite · Brittany / South Finistère, FR

Aven

The River Aven flowing over a low weir past stone houses in Pont-Aven, Brittany, France.

Small, fast South Brittany river flowing from Scaër to Pont-Aven.

Poor · Brown Trout
Pheasant Tail Nymph · 14-18
New ruleReported 7 Aug 2026

Severe drought restrictions (crise) in force

VigiEau lists this venue's surface-water zone (SUD CORNOUAILLE - ISOLE, 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Temporary notices from official orders and recent fishery reports — they clear automatically once out of date.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.

Closed season
Out of season. Try elsewhere.
Closed — confidence not applicable today.
What moved it
  • Level0.05 mLast reading 18h ago
  • Water temp17.3°C
  • ClarityClear
Today's fly
Pheasant Tail Nymph
Pheasant Tail Nymph14-18
Upstream
Conditions on the water
Live gauge
Level
Steady
0.05 m
Last reading 18h ago
Water temp17.3°C
ClarityClear
Weather19°C
WindSE 17 km/h
Pressure1007 hPa
Rain · recent3.6 mm
Rain · ahead4.6 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
17°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
Caddisflies
Gammarids
Hatch timeline · todayPeak at 11am

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

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

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 2 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 · September 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
Scorff
9.0 km
0
Brown trout · Salmon · Sea trout
Isole
15 km
0
Brown trout · Salmon · Sea trout
Ellé
27 km
0
Brown trout · Salmon · Sea trout
Jet
22 km
Brown trout · Salmon · Sea trout
Odet
31 km
Brown trout · Salmon · Sea trout
Gallery · 2
  1. The River Aven flowing over a low weir past stone houses in Pont-Aven, Brittany, France.
    River @ Pont-Aven
  2. Terrain map of the venue
    Terrain map
About this water

Small, fast South Brittany river flowing from Scaër to Pont-Aven. Intimate water — 100% wild brown trout on Armorican granite. Fly-fishing on designated beats. Responsive to Atlantic rainfall for volume. Spring through early summer best for dry-fly work. This is not showpiece water, but it rewards careful fishing and respect for wild trout. Check AAPPMA for access.

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: Good
  • Chemical: Unknown

WFD classification · FRGR0087

The full read · show the working · for Brown Trout · confidence 90%
How the 0 is built — score × weight = contribution
Temperature59 × 28%16.5
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity67 × 12%8.0
Conditions total= 72
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.
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

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

Related guides
Pyrenees PlaybookFrench riversEuro Nymphingsubsurface methods
Booking & contacts