Stillwater · Granite · Lozère / Margeride, FR

Lac de Naussac

Lac de Naussac reservoir with lakeside village on the far shore, Margeride, Lozère, France
Fair · Rainbow
Hare's Ear Nymph · 14-16
New ruleReported 12 Sept 2026

Severe drought restrictions (crise) in force

VigiEau lists this venue's surface-water zone (bassin de l'Allier amont, dépt 48) at crise, under an official préfectoral drought arrêté. Fishing is not itself banned by it, but water levels are low — go gently on stressed fish.

Arrêté préfectoral n°38072 ↗

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date.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

Fairlive now
Reasonable autumn fishing likely at Lac de Naussac
Good wave on — drift country. A useful wave. Work the productive shore.
61% confidence

Lac de Naussac is often best in spring through autumn.

What moved it
  • WindN 14 km/hGentle breeze · Gusts to 23 km/h
Today's fly
Hare's Ear Nymph
Hare's Ear Nymph14-16
Upstream
Conditions on the water
Estimate
Wind
Gentle breeze · Gusts to 23 km/h
N 14 km/h
N
N
from the north
Wave20 cm ripple
Water temp12.9°C
Air temp16°C
CloudOvercast
Pressure1019 hPa
Rain · recent0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

How to fish it · for Rainbow
When
Conditions are not ideal but fishable at Lac de Naussac. The ripple should help fish move and feed more confidently.
Where
Start with Perdigón (16-18) — on the point — slow figure-of-eight retrieve. Early in the day, try buzzers on a slow figure-of-eight or a booby on a fast-sink line near the bottom. Rainbows respond to more active retrieves — try short strips between pauses.
The plan
Plan A

Start with Perdigón (16-18) — on the point — slow figure-of-eight retrieve. Early in the day, try buzzers on a slow figure-of-eight or a booby on a fast-sink line near the bottom. Rainbows respond to more active retrieves — try short strips between pauses.

Plan B

A fry-imitating pattern stripped through the margins can save a blank in autumn.

Watch for

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

Either bank or boat

Good ripple suits both bank and boat. Bank: work inflows, dam walls, and points. Boat: broadside drift covering wind lanes.

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds as a supporter.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 4 as a supporter.

Start free trial

14-day free trial. Cancel anytime.

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
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
Fly box · Rainbow
Permits & access
Permit required — see local rules.
  • AAPPMA Lozère
  • 2ème catégorie reservoir
  • Boat access from Naussac village
  • Float tubes permitted.
What's coming
Plan ahead
5-day outlook
Condition match
59%
Cloud50%
Wind65%
Temp60%

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

Other water nearby · 5
Allier (Upper, Langogne–Langeac)
4.0 km
Brown trout · Grayling
Loire (Upper)
28 km
Brown trout · Grayling
Chassezac
37 km
Brown trout
Ardèche (Upper, Aubenas Headwaters)
40 km
Brown trout
Tarn (Upper)
43 km
Brown trout · Grayling
Gallery · 2
  1. Lac de Naussac reservoir with lakeside village on the far shore, Margeride, Lozère, France
    Lac de Naussac, Margeride
  2. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Good
  • Chemical: Failing to achieve good
What this classification means

WFD ecological status Moderate → Good and chemical status Good → Failing to achieve good corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody FRGL113 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · FRGL113

Why this score
  • Buzzer is in its seasonal window, boosting the chance of targeted feeding.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 2e Saturday de March → 3e Sunday de September
Related guides
Big Stillwater Playbookreservoir tacticsReservoir Entomologymatching the hatchThermal Layers & Troutreading depth and temperature
Booking & contacts
Permits & access
  • Commercial Trout Fishery
    Commercial managed trout fishery. Contact venue directly for day ticket availability and pricing.