Freestone · Granite · Morvan / Yonne, FR

Cure

Cure venue image

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.

Poor · Brown Trout
CDC Emerger · 16-18
New ruleReported 3 Aug 2026

Severe drought restrictions (alerte renforcée) in force

The YONNE aval zone (Dept 58) is at alerte renforcée — the second-highest French drought tier — under a préfectoral arrêté. Fishing itself is not named as prohibited, but water is severely restricted and flows are likely very low; fish with care and check locally.

Arrêté préfectoral n°37546

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date. Always confirm locally before travelling.

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
  • LevelProxyvia Sioule
  • Water temp22.5°C
  • ClarityClear
Today's fly
CDC Emerger
CDC Emerger16-18
Dead-drift
Conditions on the water
Proxy gauge
Level
Steady
Proxy
via Sioule
Water temp22.5°C
ClarityClear
Weather26°C
WindS 5 km/h
Pressure1015 hPa
Rain · recent1.3 mm
Rain · ahead3.6 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
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 22.5°C. This is the line where catch-and-release kills brown trout. Do not fish for them today.
Hatch timeline · todayPeak at 6pm

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

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Beyond the hatch · worth watchingambient prey

Hatch predictions

Top prey shown — see all 2 with Pro.

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Through the year
0–3 scale · August 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

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

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 23°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 90%
How the 8 is built — score × weight = contribution
Temperature4 × 28%1.1
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time80 × 13%10.4
Pressure80 × 7%5.6
Insect activity51 × 12%6.1
Limiting factor: Water temperature (22.5°C) is outside Brown Trout's preferred range (10–16°C)= 58
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowproxy via Siouleproxy
What would change the calculation
Cooler water — back toward the 10–16 °C ideal band — would lift the score and ease welfare.
Directions
Seasons & zones
  • Trout 2nd Saturday of March3rd Sunday of September
Related guides
Booking & contacts