Stillwater · Alluvial · Isère / Nord-Isère (Trept)

Domaine des 3 Lacs du Soleil

Domaine des 3 Lacs du Soleil terrain map
Fair · Rainbow
Medium nymphs · 14–16
A respectable few hours, if you choose your moments
Water temperature is the limiting factor today, not the wave. Fish dawn or dusk if you go at all, and handle everything with extra care.
48% confidence
limited data

Domaine des 3 Lacs du Soleil is often best in spring through autumn.

What moved it
  • WindE 7 km/hLight breeze
Today's fly
MN
Medium nymphs14–16
Search the runs and pockets, dead-drift near the bottom.
Conditions on the water
Live gauge
Wind
Light breeze
E 7 km/h
N
E
from the east
WaveRipple
Water temp—
Air temp28°C
CloudClear
Pressure1019 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Rainbow
When
March–May and September–October
Where
Start with Medium nymphs (12-14) on a slow, natural presentation — check locally for the preferred method. Evening can produce explosive surface takes — try a foam beetle or booby on a long leader. Rainbows respond to more active retrieves — try short strips between pauses.
The plan
Plan A

Start with Medium nymphs (12-14) on a slow, natural presentation — check locally for the preferred method. Evening can produce explosive surface takes — try a foam beetle or booby on a long leader. Rainbows respond to more active retrieves — try short strips between pauses.

Plan B

Fish early and late, try deeper during the heat of the day with a fast-sinking line.

Watch for

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

Bank

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

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 3 with Pro.

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Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Reservoir BuzzerHatch
2
3
3
3
3
3
2
Lake OliveHatch
2
3
3
3
3
3
2
Silverhorns & LonghornsHatch
1
2
2
2
1

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

Ranked for today
Rainbow fly box
MN
Medium nymphsTop
14–16 · Nymph
Search the runs and pockets, dead-drift near the bottom.
DR
dries
12–16 · Fly
A dependable searching pattern for these waters.
BU
buzzers
10–14 · Buzzer
Static or slow on a long leader — the staple stillwater chironomid.
ST
streamers
8–10 · Streamer
Strip it for fish chasing fry or in coloured water.
Permits & access
Permit required — see local rules.
  • Commercial fly-only on the Grand Lac (the other lakes are bait/coarse only)
  • Day tickets required
  • Black bass and perch no-kill.
What's coming
Plan ahead
5-day outlook
Condition match
55%
Cloud25%
Wind100%
Temp25%

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

Other water nearby · 5
Pisciculture de Burcin - La pêche pour tous
28 km
Rainbow trout
Chaley Lake
33 km
Brown trout · Rainbow trout
Albarine
37 km
Brown trout · Grayling
Lac d'Aiguebelette
38 km
Brown trout · Char
Lac du Bourget
40 km
Brown trout · Char
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout Year-round → Year-round
Related guides
Small Stillwater Playbookstillwater tacticsThermal Layers & Troutreading depth and temperaturePyrenees PlaybookFrench rivers
Booking & contacts
Permits & access