Stillwater · Volcanic · Auvergne / Puy-de-Dôme (Monts Dore), FR

Lac Chambon

Lac Chambon, a volcanic lake in the Monts Dore, Puy-de-Dôme, France, seen from its northern shore with wooded crater slopes beyond

Chambon is a lava-dammed lake — the Tartaret volcano erupted some three thousand years ago, sent a lava flow down the valley, and blocked the Couze Chambon river where it runs out of the Monts Dore.

Fair · Trout
Hare's Ear Nymph · 14-16
Fairlive now
Good drifting conditions on Lac Chambon
Useful ripple, fishable wave. Worth a session if the wind holds.
56% confidence

Lac Chambon is often best in spring through autumn.

What moved it
  • WindS 24 km/hModerate breeze
Today's fly
Hare's Ear Nymph
Hare's Ear Nymph14-16
Upstream
Conditions on the water
Estimate
Wind
Moderate breeze
S 24 km/h
N
S
from the south
Wave40 cm chop
Water temp18.7°C
Air temp20°C
CloudOvercast
Pressure1019 hPa
Rain · recent0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Head to
Wind driftS wind
Northern end

A southerly has held for 6 hours at much the same temperature as the 19°C water. No thermal steer either way, but the drift still stacks food against the northern end — the bank it is blowing into — so start there. This reads the upper water, though — a bottom bait at range feels it far less than a floater or a fish in the margins. Treat it as a tiebreaker between good swims rather than an override — features and angling pressure usually count for more.

How to fish it · for Trout
When
April–June and September
Where
Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A

Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.

Plan B

If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.

Watch for

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 as a supporter.

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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
Claret DunHatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Flying AntsHatch
1
2
1
Silverhorns & LonghornsHatch
1
2
2
2
1

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Trout fly box

French nymph-first water. Fast current, technical presentation, weighted nymphs and emergers, with dry flies when fish rise.

Permits & access
Permit required — see local rules.
  • AAPPMA Puy-de-Dôme
  • 1ère catégorie
  • Busy summer months; fish early.
What's coming
Plan ahead
5-day outlook
Condition match
45%
Cloud50%
Wind30%
Temp60%

Conditions are away from Lac Chambon's sweet spot — it usually fishes best in ripple wind with cloud skies.

Other water nearby · 5
Gallery · 2
  1. Lac Chambon, a volcanic lake in the Monts Dore, Puy-de-Dôme, France, seen from its northern shore with wooded crater slopes beyond
    Lac Chambon, viewed from its northern shore
  2. Terrain map of the venue
    Terrain map
About this water

Chambon is a lava-dammed lake — the Tartaret volcano erupted some three thousand years ago, sent a lava flow down the valley, and blocked the Couze Chambon river where it runs out of the Monts Dore. The result is a fifty-hectare lake in a wide, sunny basin with the volcano sitting at one end and the fishing going on at the other. It gets busier than Pavin or Chauvet in summer because it has beaches and pedaloes and all the apparatus of a proper French family holiday, which is fine — you just fish it in the hour before the pedaloes come out. Trout and perch, standard cast. The inflow at the east end and the outflow by the Tartaret are both worth time. Not the most remote water in the Massif Central, but a good lake all the same if you pick your hours.

  • Lake
  • Volcanic
Water quality (WFD)
  • Ecology: Poor
  • Chemical: Good

WFD classification · FRGL127

Why this score
  • Wind conditions (windy) are not ideal for this water.
  • Daddy longlegs are in their seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 2nd Saturday of March → 3rd Sunday of September
Related guides
Booking & contacts