Stillwater · Granite · Savoie / Haute-Maurienne (Vanoise)

Lac du Mont-Cenis

Lac du Mont-Cenis — Lac du Mont-Cenis
Contributor photo

Lac du Mont-Cenis

Pierre_Bn (https://www.flickr.com/photos/91111169@N00) - CC BY

Mont-Cenis is technically a reservoir — the dam went in in 1968 and flooded the old pastures and a hamlet or two — but it sits at 1,974 metres in the Vanoise granite and it fishes like a genuine Alpine water because that is basically what it is.

Fair · Trout
Small Perdigón · 16-20
A respectable few hours, if you choose your moments
Glassy and bright — hard work without a breeze. Hard work without breeze. Look for the dimples.
46% confidence
limited data
What moved it
  • WindNW 4 km/hCalm
Today’s fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Live gauge
Wind
Calm
NW 4 km/h
N
NW
from the north-west
WaveFlat calm
Water temp
Air temp12°C
CloudClear
Pressure1022 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for trout
When
June–September
Where
With limited drift, anchor or fish static from sheltered positions. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point. In the calm, a single dry fly or a slowly-fished nymph tends to out-fish an active retrieve.
The plan
Plan A

With limited drift, anchor or fish static from sheltered positions. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point. In the calm, a single dry fly or a slowly-fished nymph tends to out-fish an active retrieve.

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

Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.

Bank

Flat calm suits bank fishing near features — points, weed beds, and inflows where fish patrol.

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

Hatch predictions

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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
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Lake OliveHatch
1
2
2
2
2
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
Permits & access
Permit required — see local rules.
  • AAPPMA Haute-Maurienne Vanoise
  • Standard 1ère catégorie rules
  • Short season — check for ice-out and first-snow closure.
What's coming
Plan ahead
5-day outlook
Condition match
52%
Cloud25%
Wind65%
Temp60%

A reasonable day here, though cloud isn't quite in the sweet spot.

Other water nearby · 4
Gallery · 2
  1. Lac du Mont-Cenis — Lac du Mont-Cenis
    Lac du Mont-Cenis
  2. Terrain map of the venue
    Terrain map
About this water

Mont-Cenis is technically a reservoir — the dam went in in 1968 and flooded the old pastures and a hamlet or two — but it sits at 1,974 metres in the Vanoise granite and it fishes like a genuine Alpine water because that is basically what it is. The drive up from Lanslebourg is half the pleasure and half the filter: you arrive and the lake is quiet and the trout are wild, which is exactly the combination mountain anglers go looking for and rarely find. Ice-out is late — often not until the end of May — and the fishing season is tight, but the window that does open is genuinely good. Expect small fish, genuine wild browns, and the sort of day where the only sound is your fly line and the wind over the col. The char population exists but is modest and the trout are the real reason to come.

  • Lake
  • Granite
Water quality (WFD)
  • EcologyGood
  • ChemicalGood

WFD classification · FRDL53

Why this score
  • Murrough is in its seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • TroutLate May (after ice-out) → 3rd Sunday of September
  • Charvaries_by_lake → varies_by_lake

    French lake char (omble chevalier / omble de fontaine) — seasons and retention rules are set by departmental regulations and local fishing associations (AAPPMA). French char lakes are often managed with strict rules. Check the local AAPPMA or departmental fishing regulations before targeting char.

Related guides
Booking & contacts