Freestone · Granite · Haute-Loire

Loire (Upper)

Loire (Upper) terrain map
Terrain map

The upper Loire, before it becomes the sand-flat river of French school geography, is a proper mountain stream.

Poor · Brown Trout
Small Perdigón · 16-20
Poorlive now
Not the day for it
Low and clear — careful approach country. A morning for the obvious fish only.
90% confidence
What moved it
  • LevelDry recentlyNo gauge reading
  • Water temp22.1°C
  • ClarityClear
Today’s fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp22.1°C
ClarityClear
Weather28°C
WindN 13 km/h
Pressure1021 hPa
Rain · recent0.1 mm
Rain · ahead0.9 mm

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

Water temperature for brown trout
Warm — slow
22°C est.ideal 1016°C
0°14°28°
How to fish it · for brown trout
When
Through the open trout season. Spring olives April through May; sedges through summer evenings; small dark flies into autumn close.
Where
Pool tails and pocket water through the Haute-Loire valley. Massif Central freestone — clear cold water.
Method
Upstream dry to risers; dry-dropper through the riffles. The water reads clear — long leader, fine tippet. Move slowly, cast accurately.
Kit
9 ft #4 — French freestone default. Floating line, 12 ft leader to 4 to 5 lb fluoro. Studded boots.
Why this works
⛔ Water at 22.1°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 5 active hatches hour by hour 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
Grayling seasonSeason
1
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 22°C. Nothing cooler within range — carry a thermometer.
About this water

The upper Loire, before it becomes the sand-flat river of French school geography, is a proper mountain stream. It rises on the Gerbier de Jonc in the Ardèche volcanic highlands and spends its first hundred kilometres as freestone granite water — pools, riffles, stony runs, the occasional deep corner where a proper fish might be holding. This is Haute-Loire country, high and exposed, the kind of water where you can fish an afternoon without seeing another angler and sometimes without seeing another human. The trout are wild and small-to-medium, the grayling modest but steady, and the hatches honest rather than famous — good Baetis through spring, caddis building from May, stoneflies in the faster runs. The water runs cold until late May because the altitude keeps it that way, so the season starts slowly and doesn't really hit its stride until the hawthorns are out. Nymph it in April and May, dry-fly it from June onwards, and accept that you are fishing for the place as much as for the fish. Nobody comes to the upper Loire to empty the water. You come because it is remote and honest and the river remembers what it is for.

  • Granite
Water quality (WFD)
  • EcologyBad
  • ChemicalUnknown

WFD classification · FRGR1684

The full read · show the working · for brown trout · confidence 90%
How the 12 is built — score × weight = contribution
Temperature6 × 28%1.7
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity51 × 12%6.1
Limiting factor: Water temperature (22.1°C) is outside Brown Trout's preferred range (10–16°C)= 55
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
  • Grayling3rd Saturday of May → 3rd Sunday of September
Related guides
Booking & contacts