Stillwater · Mixed · Jura / Franche-Comté

Lac de Vouglans

Turquoise waters of Lac de Vouglans winding through forested limestone hills, Jura, France
Fair · Trout
Small Perdigón · 16-20
New ruleReported 30 Jul 2026

Severe drought restrictions (crise) in force

The Plateau calcaire zone (Dept 39) is at crise — the second-highest French drought tier — under a préfectoral arrêté. Fishing itself is not named as prohibited, but water is severely restricted and flows are likely very low; fish with care and check locally.

Arrêté préfectoral n°37532 ↗

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date. Always confirm locally before travelling.

Fairlive now
Reasonable summer fishing likely at Lac de Vouglans
Useful ripple, fishable wave. Worth a session if the wind holds.
54% confidence

Lac de Vouglans is often best in spring through autumn.

What moved it
  • WindSE 6 km/hCalm
Today's fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Live gauge
Wind
Calm
SE 6 km/h
N
SE
from the south-east
WaveRipple
Water temp—
Air temp22°C
CloudClear
Pressure1018 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
Conditions are not ideal but fishable at Lac de Vouglans. The ripple should help fish move and feed more confidently.
Where
Start with Small Perdigón (16-20) — on the point — slow figure-of-eight retrieve. If that does not produce, switch depth or speed before changing the pattern entirely.
The plan
Plan A

Start with Small Perdigón (16-20) — on the point — slow figure-of-eight retrieve. If that does not produce, switch depth or speed before changing the pattern entirely.

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

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 5 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
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
1
2
1
Lake OliveHatch
1
2
2
2
2
2
1

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

Ranked for today
Trout fly box
What's coming
Plan ahead
5-day outlook
Condition match
66%
Cloud25%
Wind100%
Temp60%

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

Other water nearby · 5
Valserine
14 km
33
Brown trout · Grayling
Héria
17 km
33
Brown trout
Ain
25 km
10
Brown trout · Grayling
Les Truites des Rivières
29 km
Rainbow trout
Lac des Rousses
34 km
Brown trout · Rainbow trout · Grayling
Gallery · 2
  1. Turquoise waters of Lac de Vouglans winding through forested limestone hills, Jura, France
    Lac de Vouglans, Jura
  2. Terrain map of the venue
    Terrain map
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
Related guides
Thermal Layers & Troutreading depth and temperaturePyrenees PlaybookFrench riversEuro Nymphingsubsurface methods
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