Stillwater · Limestone · Savoie / Prealpes

Lac du Bourget

Lac du Bourget — Lac du Bourget, France
Marginal · Trout
Small Perdigón · 16-20
New ruleReported 5 Aug 2026

Severe drought restrictions (alerte renforcée) in force

The Lac du Bourget - Albanais zone (Dept 73) is at alerte renforcée — 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°37592 ↗

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date.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

A patient day, if you fancy it
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.
40% confidence
limited data

Lac du Bourget is often best in spring through autumn.

What moved it
  • WindNW 8 km/hLight breeze
Today's fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Live gauge
Wind
Light breeze
NW 8 km/h
N
NW
from the north-west
WaveRipple
Water temp—
Air temp34°C
CloudClear
Pressure1021 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
April–June and September–October
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A

Set up a broadside drift and cover the water systematically. 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

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

Boat — drift

A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

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Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
2
2
2
1
Mayfly (Green Drake)Hatch
2
2
Daddy Long LegsHatch
2
3
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Silverhorns & LonghornsHatch
2
3
3
3
2

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 Lac du Bourget + boat fishing supplement
  • Depth restrictions apply to certain char techniques
  • Check Savoie prefectoral order for current rules.
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
Lac d'Aiguebelette
20 km
Brown trout · Char
Lac d'Annecy
27 km
Brown trout · Char
Fier
29 km
Brown trout
Usses
29 km
Brown trout
Isère (Combe de Savoie)
32 km
Brown trout · Grayling
Gallery · 2
  1. Lac du Bourget — Lac du Bourget, France
    Lac du Bourget, France
  2. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Good
  • Chemical: Good
What this classification means

WFD ecological status Moderate → Good corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody FRDL60 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · FRDL60

Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • High temperatures may push fish deeper and reduce surface activity.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout Last Saturday of January → End of December
  • Char varies_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
Thermal Layers & Troutreading depth and temperaturePyrenees PlaybookFrench riversEuro Nymphingsubsurface methods
Booking & contacts