Freestone · Granite · Vosges / Vosges (88) (Moselotte valley), FR

Moselotte

Photo of Moselotte

Vosges mountain river with strict regulations protecting wild trout and grayling.

Poor · Grayling
Pink Grayling Bug · Hook 16
Closed season
Out of season. Try elsewhere.
Closed — confidence not applicable today.
What moved it
  • Level0.46 mLast reading 14 min ago
  • Water temp7.8°C
  • ClarityClear
Today's fly
Pink Grayling Bug
Pink Grayling BugHook 16
in season · all-rounder
Conditions on the water
Live gauge
Level
Steady
0.46 m
Last reading 14 min ago
Water temp7.8°C
ClarityClear
Weather1°C
WindE 13 km/h
Pressure1019 hPa
Rain · recent0.0 mm
Rain · ahead18.4 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Grayling
Ideal
8°C est.ideal 4–14°C
0°14°28°
How to fish it · for Grayling
When
Autumn through November prime.
Where
Faster runs in the middle and lower stretches.
Method
Euro-nymphing through the deeper pockets; switch to dries when sedges or olives come off in autumn afternoons.
Kit
10 ft #3 nymphing rod for the deep pockets; 9 ft #4 for dries. 4 to 5 lb fluoro tippet, 12 ft leader.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 6 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

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

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Evidence
Survey-backed · regionalHigh confidence

Backed by regional invertebrate surveys; no sampling on this exact reach yet.

Through the year
0–3 scale · November highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
Grayling seasonSeason
1
2
2
2
1
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Blue Winged OliveHatch
1
2
2
2
2
1
Autumn OliveHatch
1
2
1

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

Ranked for today
Grayling fly box

More balanced than the mountain-river pack. French nymphing still matters, but there is more room for dries, spiders and general searching flies.

Small Perdigón
Small Perdigón
Hook 14–18 · Fly
in season
Permits & access
Permit required — see local rules.
  • AAPPMA permits
  • No-kill and fly-only parcours.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Domaine de Champs sur l'Eau
17 km
Rainbow trout · Brown trout · Char
Vologne
19 km
Brown trout
Lacs du Neuweiher
23 km
Brown trout · Char
Lac des Perches (Sternsee)
23 km
Brown trout · Char
Lac d'Alfeld
23 km
Brown trout · Char
Gallery · 2
  1. Photo of Moselotte
    Moselotte
  2. Terrain map of the venue
    Terrain map
About this water

Fly-only, no-kill, barbless-hook requirements on designated sections. Granitic freestone with excellent insect populations. Local-strain wild fish are priority. Spring through early autumn. Check Vosges AAPPMA regulations.

Hatches & food

In Vosges granite catchments, trout in cool freestone streams feed on early and spring olives once levels settle after winter, daytime stoneflies over clean, stony runs, a broad band of evening caddis supported by rich bug life in the region, steady small buzzer activity on mild days, and terrestrials strongest where the river is hemmed in by forest.

  • Granite
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown

WFD classification · FRCR223

The full read · show the working · for Grayling · confidence 75%
How the 0 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity85 × 18%15.3
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity37 × 12%4.4
Conditions total= 79
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 2nd Saturday of March → 3rd Sunday of September
  • Grayling 3rd Saturday of May → 3rd Sunday of September

    France national rule: grayling opens 3rd Saturday of May in all waters. In 1st category (salmonid) rivers, grayling closes with the trout season on the 3rd Sunday of September. Departmental regulations may impose additional restrictions. Always check the relevant département's 2026 arrêté préfectoral.

Related guides
Grayling Playbookgrayling tacticsPyrenees PlaybookFrench riversEuro Nymphingsubsurface methods
Booking & contacts
At a glance

Moselotte is a freestone river in Vosges / Vosges (88) (Moselotte valley), France. Its recorded elevation is about 410 m above sea level and the catchment geology is granite. The river is described as roughly 47 km long. Our data lists brown trout and grayling here. The trout season is recorded as running from 2nd Saturday of March to 3rd Sunday of September. The grayling season is recorded as running from 3rd Saturday of May to 3rd Sunday of September. Best window recorded for anglers: March–September. Core methods listed: Short-line nymphing; dry fly. Level and flow data for this water is linked from 1 gauge. Its Water Framework Directive ecological status is recorded as moderate. Access is recorded as day tickets through the local AAPPMA (angling association). Nearby waters in our listings include Domaine de Champs sur l'Eau at 17 km, Vologne at 19 km and Lacs du Neuweiher at 23 km.