Freestone · Granite · Massif Central / Puy-de-Dôme (Combrailles)

Petit Sioulet

Petit Sioulet terrain map
Terrain map

The Petit Sioulet is the Sioule's younger and quieter sibling — the same water in miniature, running through the same Combrailles granite country, with the same character of wild trout and the same willingness to reward patience.

Good · Brown Trout
Small Perdigón · 16-20
Goodlive now
A proper day on the water
Low and clear — careful approach country. Stay small, stay accurate.
90% confidence
What moved it
  • Level0.24 mLast reading 23h ago
  • Water temp17.6°C
  • ClarityClear
Today’s fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Live gauge
Level
Steady
0.24 m
Last reading 23h ago
Water temp17.6°C
ClarityClear
Weather20°C
WindE 4 km/h
Pressure1023 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
Warm — slow
18°C est.ideal 1016°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
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 9 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
Trout seasonSeason
1
2
2
2
2
2
1
Large Dark OliveHatch
1
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Autumn OliveHatch
1
2
1
GrannomHatch
1
1

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
About this water

The Petit Sioulet is the Sioule's younger and quieter sibling — the same water in miniature, running through the same Combrailles granite country, with the same character of wild trout and the same willingness to reward patience. It's small enough that the main Sioule anglers rarely bother, which is exactly why it's worth bothering with. Short casts, pocket water, the occasional deeper pool where a bigger fish might be lying. Work upstream with a dry-dropper rig and don't linger — cover water, pick the best lies, keep moving. Caddis and stoneflies all season; olives in the right light. Spring and early summer are the prime window, but the upper reaches stay cool enough to fish well into August. A proper backup river when the main Sioule is full of other anglers or running off-colour after a storm.

  • Granite
Water quality (WFD)
  • EcologyGood
  • ChemicalUnknown

WFD classification · FRFR106A

The full read · show the working · for brown trout · confidence 90%
How the 74 is built — score × weight = contribution
Temperature64 × 28%17.9
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
Seasons & zones
  • Trout2nd Saturday of March → 3rd Sunday of September
Related guides
Booking & contacts