Freestone · Granite · Massif Central / Haute-Loire (Tence)

Haut-Lignon

The Lignon du Velay river flowing through meadows near Tence, Haute-Loire, France
Contributor photo

Le Lignon du Velay at Tence, Haute-Loire

Havang(nl)

The upper Lignon rises on the granite of the Velay around Tence — a thin, clear headwater network that the local federation has been quietly protecting for decades.

Poor · Brown Trout
Small Perdigón · 16-20
Poorlive now
Not the day for it
River temperature is the limiting factor today, not the flow. This is not the day to push it. Check the thermal advice above before you head out.
90% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp22.6°C
  • ClarityClear
Today’s fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp22.6°C
ClarityClear
Weather24°C
WindSE 4 km/h
Pressure1015 hPa
Rain · recent0.0 mm
Rain · ahead15.7 mm

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

Water temperature for brown trout
Warm — slow
23°C est.ideal 1016°C
0°14°28°
How to fish it · for brown trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
⛔ Water at 22.6°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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Evidence
Survey-backed · regionalModerate confidence

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

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

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

Ranked for today
Brown Trout fly box
Permits & access
Permit required — see local rules.
  • AAPPMA permits.
What's coming
Plan ahead
5-day outlook
Water here around 23°C. Nothing cooler within range — carry a thermometer.
Gallery · 2
  1. The Lignon du Velay river flowing through meadows near Tence, Haute-Loire, France
    Le Lignon du Velay at Tence, Haute-Loire
  2. Terrain map of the venue
    Terrain map
About this water

The upper Lignon rises on the granite of the Velay around Tence — a thin, clear headwater network that the local federation has been quietly protecting for decades. The fish are wild browns, local-strain, and present in genuine numbers where the habitat is right. The upper reaches demand a walk — an hour or two along a forest track, sometimes more — and that's the filter. By the time you get there you've earned the solitude and the fishing tends to reflect it. Baetis and caddis make up most of the surface food; terrestrials take over when the water drops. Work upstream with short, careful casts and expect small fish willing to work for a drag-free drift. The atmosphere is half the point. You don't fish the haut Lignon for a trophy. You fish it for the walk out at the end of the afternoon, with a flask of something warm and the light going over the Monts du Vivarais.

  • Granite
Water quality (WFD)
  • EcologyGood
  • ChemicalUnknown

WFD classification · FRGR0161A

The full read · show the working · for brown trout · confidence 90%
How the 6 is built — score × weight = contribution
Temperature3 × 28%0.8
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity40 × 12%4.8
Limiting factor: Water temperature (22.6°C) is outside Brown Trout's preferred range (10–16°C)= 47
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
The dawn and dusk windows score higher than the midday lull.
Directions
Seasons & zones
  • Trout2nd Saturday of March → 3rd Sunday of September
Related guides
Booking & contacts