Freestone · Granite · Massif Central / Cantal (Artense)

Tarentaine

Tarentaine terrain map
Terrain map

The Tarentaine rises in the Artense — that strange, high, lake-dotted country on the border of Cantal and Puy-de-Dôme where the Massif Central flattens into a sort of French version of Connemara — and runs south through pasture and granite to join the Rhue.

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 temp22.8°C
  • ClarityClear
Today’s fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Estimate
Level
Dry recently
No gauge reading
Water temp22.8°C
ClarityClear
Weather29°C
WindNW 11 km/h
Pressure1019 hPa
Rain · recent0.0 mm
Rain · ahead22.4 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 22.8°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

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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 23°C. Nothing cooler within range — carry a thermometer.
About this water

The Tarentaine rises in the Artense — that strange, high, lake-dotted country on the border of Cantal and Puy-de-Dôme where the Massif Central flattens into a sort of French version of Connemara — and runs south through pasture and granite to join the Rhue. Wild brown trout throughout, a useful population of grayling in the lower reaches, and hatches that track the season without any particular drama: baetis through spring, ephemeridae in early summer, caddis into July, terrestrials when the water is low. The Artense country above is lake country, so the Tarentaine has a slightly longer baseflow memory than you'd expect from a Massif Central stream. Not famous, which is the point. You fish it because you want somewhere quiet on a warm afternoon, and you leave thinking you should come back more often.

  • Granite
Water quality (WFD)
  • EcologyGood
  • ChemicalUnknown

WFD classification · FRFR103

The full read · show the working · for brown trout · confidence 90%
How the 4 is built — score × weight = contribution
Temperature2 × 28%0.6
Flow60 × 22%13.2
Clarity95 × 18%17.1
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity57 × 12%6.8
Limiting factor: Water temperature (22.8°C) is outside Brown Trout's preferred range (10–16°C)= 51
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

    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.

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