Freestone · Mixed · Haute-Savoie

Arve

Arve terrain map
Terrain map

The Arve is the river you fish because you're in Chamonix anyway and the Alps are doing their thing around you.

Species

A side-water session, not the main event

Low and clear — careful approach country. Long leader, small flies, slower casts.

75% confidence in this read
Water temperature for brown trout
Cool — slow
6°C est.ideal 10–16°C
0°14°28°
Why this score · for brown trout
  • Temperature3028% weight
  • Flow6022% weight
  • Clarity9518% weight
  • Feeding Time5013% weight
  • Pressure807% weight
  • Prey Activity2012% weight
Conditions
Level
Dry recently
No gauge reading
Water temp
5.6°C
Estimated
Clarity
Clear
Air temp
3°C
Wind
E 5 km/h
Calm
Pressure
1017 hPa
Rain · 48h
0.8 mm
No meaningful rain
Rain · ahead
11.6 mm
Moderate rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

How to fish it · for brown trout
When
Through the open trout season — once snowmelt drops. Mont Blanc-fed glacial influence means the Arve runs cold and clear once meltwater eases. Best from late June into autumn close.
Where
Pool tails and pocket water through the Haute-Savoie valley. Glacial-fed water reads cold and clear.
Method
Upstream dry to risers; dry-dropper through the riffles. The water reads clear — long leader, fine tippet. Move slowly, cast accurately.
Kit
9 ft #4 — French freestone default. Floating line, 12 ft leader to 4 to 5 lb fluoro. Studded boots.
Why this works
Fair conditions. Clarity is favourable (95), Prey activity is weakest (20).
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
1

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

Directions
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About this water

The Arve is the river you fish because you're in Chamonix anyway and the Alps are doing their thing around you. The upper river runs glacially milky for most of the season, so it's the middle and lower reaches that fish properly — from about Sallanches down, where tributaries from the Giffre and the Bon Nant dilute the glacier-flour and the water clears enough to let you see your fly. Wild brown trout, mostly modest but with the occasional surprising fish from the deeper valley slips that remind you this was once serious water. Alpine tactics: heavy nymph through the pocket water, short-line approach, a willingness to move constantly. The river is spate-responsive and can carry colour for days after heavy rain or a warm afternoon on the glaciers. Prime window is June through September — the glaciers dictate rather than the calendar. Not an easy river, but one of the most atmospheric in the French Alps if you're willing to work out its timing.

  • Mixed
Seasons & zones
  • Trout2nd Saturday of March → 3rd Sunday of September
Other water nearby · 5
Booking & contacts