Freestone · Granite · Morvan / Yonne

Cure

Cure venue image
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The Cure rises on the high granite of the Morvan, runs north through the woods and water-meadows of Nièvre and Yonne, and joins its parent the Yonne near Vermenton.

Marginal · Brown Trout
CDC Emerger · 16-18
Marginallive now
Slow going — pick your moments
Low and clear — careful approach country. Cover and shadow are doing the work today.
80% confidence
What moved it
  • LevelProxyvia Sioule
  • Water temp18.4°C
  • ClarityClear
Today’s fly
CDC Emerger
CDC Emerger16-18
Dead-drift
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Sioule
Water temp18.4°C
ClarityClear
Weather18°C
WindN 14 km/h
Pressure1020 hPa
Rain · recent2.2 mm
Rain · ahead0.0 mm

No gauge on this water — conditions are inferred from Sioule. The trend transfers, the absolute level does not.

Water temperature for brown trout
Warm — slow
18°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 18.4°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots. Otherwise poor — water clarity is in the right range.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 8 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
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 Morvan / Fédération Yonne & Nièvre
  • Standard 1ère catégorie.
What's coming
Plan ahead
5-day outlook
Water here around 18°C. Nothing cooler within range — carry a thermometer.
Gallery · 1
  1. Terrain map of the venue
    Terrain map
About this water

The Cure rises on the high granite of the Morvan, runs north through the woods and water-meadows of Nièvre and Yonne, and joins its parent the Yonne near Vermenton. It is one of those quiet French trout rivers that nobody writes about, which is most of the point. The upper reaches around Saulieu and Dun-les-Places are the kind of water a Gierach-minded angler recognises instantly — small pools, clean gravel, occasional deeper corners under the oaks, and fish that have obviously never read the fishing press. The Morvan is old granite, which means the river runs clear and cold and responds quickly to rain. The hatches are honest — Baetis through spring, caddis building from May, stoneflies in the faster pocket water — and the wild brown trout are the right size for a small river: six to ten inches with the occasional pool resident that makes you wish you had brought something slightly heavier. Fish it short. Nymph through April when the water is still cold from the Morvan winter; shift to dry fly as soon as the hawthorn flies show. The best beats are in the middle Cure, above the Crescent reservoir where the character of the river is still wholly its own.

  • Granite
Water quality (WFD)
  • EcologyGood
  • ChemicalUnknown

WFD classification · FRHR51

The full read · show the working · for brown trout · confidence 80%
How the 38 is built — score × weight = contribution
Temperature49 × 28%13.7
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity63 × 12%7.6
Conditions total= 67
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Siouleproxy
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