Stillwater · Granite · Vosges / Haut-Rhin (Sewen / Ballon d'Alsace), FR

Lac d'Alfeld

Lac d'Alfeld — Lac d'Alfeld @ Ballon d'Alsace

1st-category lake near Sewen at the foot of Ballon d'Alsace.

Marginal · Trout
Small Damsel · 8-12
New ruleReported 23 Jul 2026

Severe drought restrictions (crise) in force

The bassins de la Doller amont, de la Fecht, de la Weiss et de la Lauch zone (Dept 68) 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°37430

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date.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.
44% confidence
limited data

Lac d'Alfeld is often best in spring through autumn.

What moved it
  • WindN 6 km/hCalm
Today's fly
SD
Small Damsel8-12
Retrieve
Conditions on the water
Live gauge
Wind
Calm
N 6 km/h
N
N
from the north
WaveRipple
Water temp
Air temp25°C
CloudBroken
Pressure1015 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Trout
When
May–September
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. Keep a sedge-style dry or emerger on a short leader for the evening rise.
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. Keep a sedge-style dry or emerger on a short leader for the evening rise.

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.

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

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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
Trout fly box

Closer to wild-lake trout fishing than to competition réservoirs. More room for naturals, caddis, buzzer, terrestrial and modest lure use.

SD
Small Damsel
8-12 · Pattern
Retrieve
Permits & access
Permit required — see local rules.
  • Vosges AAPPMA permits.
What's coming
Plan ahead
5-day outlook
Condition match
77%
Cloud100%
Wind100%
Temp25%

A good match for Lac d'Alfeld — most conditions are close to what it fishes best in.

Other water nearby · 5
Gallery · 2
  1. Lac d'Alfeld — Lac d'Alfeld @ Ballon d'Alsace
    Lac d'Alfeld @ Ballon d'Alsace
  2. Terrain map of the venue
    Terrain map
About this water

1st-category lake near Sewen at the foot of Ballon d'Alsace. Car-accessible alpine lake with fario trout and char. Strict fly-only management protects wild populations. Cold, clear water. Accessible alpine lake fishing with good potential. Spring through early autumn. Check Haut-Rhin regulations.

  • Lake
  • Granite
Water quality (WFD)
  • EcologyUnknown
  • ChemicalUnknown
What this classification means

WFD code removed 2026-06-18: this alpine lake was incorrectly sharing the Doller river's code FRCR53. EEA WISE has no dedicated lake (LW) water body for Lac d'Alfeld, so status is left Unknown. Source: discodata.eea.europa.eu. | Prior note: WFD ecological status Moderate → Good corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody FRCR53 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • Cloud cover (cloud) suits the fishery well.
  • Daddy longlegs are in their seasonal window, boosting the chance of targeted feeding.
Directions
Seasons & zones
  • Trout 2nd Saturday of March3rd Sunday of September
  • Char varies_by_lakevaries_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
Booking & contacts