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 15 Aug 2026

Severe drought restrictions (crise) in force

A préfectoral drought order places this catchment's surface water at crise, the highest of France's four restriction tiers. Fishing itself is not named in the order, but flows are low and water-use restrictions are in force. Zone: bassin de l'Allier amont (dépt 48).

Arrêté préfectoral n°37709 ↗

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date.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

Fairlive now
Evening session looks promising at Lac de Naussac
Good wave on — drift country. A useful wave. Work the productive shore.
64% confidence

Lac de Naussac is often best in spring through autumn.

What moved it
  • WindNW 12 km/hGentle breeze
Today's fly
Hare's Ear Nymph
Hare's Ear Nymph14-16
Upstream
Conditions on the water
Estimate
Wind
Gentle breeze
NW 12 km/h
N
NW
from the north-west
Wave20 cm ripple
Water temp19.4°C
Air temp19°C
CloudBroken
Pressure1017 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
Current conditions suit Lac de Naussac well for summer tactics. The ripple should help fish move and feed more confidently. Evening can bring a surface rise — have a dry fly or emerger ready.
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

If surface work dries up, try a diawl bach or hare's ear on the point and skate a sedge pattern on the bob at last light.

Watch for

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

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

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

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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
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
Rainbow fly box
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
74%
Cloud100%
Wind65%
Temp60%

A good match for Lac de Naussac — most conditions are close to what it fishes best in.

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
Beaume
41 km
Brown trout
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
  • Cloud cover (cloud) suits the fishery well.
  • Sedge is in its seasonal window, boosting the chance of targeted feeding.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 2nd Saturday of March → 3rd Sunday of September
Related guides
Big Stillwater Playbookreservoir tacticsReservoir Entomologymatching the hatchThermal Layers & Troutreading depth and temperature
Booking & contacts