Spate · Granite · Corsica / Haute-Corse (Corte / Restonica valley), FR

Restonica

Restonica — la Restonica

The Restonica rises in high mountains above Corte and descends through a gorge that reminds you how small you are.

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.
80% confidence
What moved it
  • Level0.79 mLifting fast
  • Water temp21.6°C
  • ClarityVery colouredColouring up
Today's fly
Small Perdigón
Small Perdigón16-20
Euro-nymph
Conditions on the water
Live gauge
Level
Rising
0.79 m
Lifting fast
Water temp21.6°C
ClarityVery coloured
Weather25°C
WindNE 5 km/h
Pressure1017 hPa
Rain · recent0.2 mm
Rain · ahead1.8 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Warm — slow
22°C est.ideal 10–16°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 21.6°C — above the brown trout caution line (18°C). Fish dawn or dusk only. Land it fast, wet hands, no air shots.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 6 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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Evidence
Survey-backed · regionalModerate confidence

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

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
March BrownHatch
2
3
2
GrannomHatch
2
2
Large StoneflyHatch
2
3
2
Yellow SallyHatch
2
3
2

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

Ranked for today
Brown Trout fly box

French nymph-first water. Fast current, technical presentation, weighted nymphs and emergers, with dry flies when fish rise.

Permits & access
Permit required — see local rules.
  • Haute-Corse regulations
  • Carte de pêche required
  • No-kill conservation program.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 1
Water here around 22°C — probably warm enough to stress Brown Trout . These are likely cooler.
Lac de Ninu
30 km
~19°C
Brown trout
Gallery · 2
  1. Restonica — la Restonica
    la Restonica
  2. Terrain map of the venue
    Terrain map
About this water

The Restonica rises in high mountains above Corte and descends through a gorge that reminds you how small you are. Mediterranean mountain torrent with endemic Corsican trout in cascading pocket water — demanding technical fishing with small dries and nymphs. Cold, crystal-clear flow. No-kill conservation development underway. Check Haute-Corse prefectural regulations.

  • Granite
Water quality (WFD)
  • Ecology: Good
  • Chemical: Unknown

WFD classification · FRER26B

The full read · show the working · for Brown Trout · confidence 80%
How the 17 is built — score × weight = contribution
Temperature9 × 28%2.5
Flow55 × 22%12.1
Clarity15 × 18%2.7
Feeding Time60 × 13%7.8
Pressure80 × 7%5.6
Insect activity40 × 12%4.8
Limiting factor: Water temperature (21.6°C) is outside Brown Trout's preferred range (10–16°C)= 36
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.
A drop and clear would lift the flow and clarity scores.
The dawn and dusk windows score higher than the midday lull.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout 2nd Saturday of March → 3rd Sunday of September
Related guides
Pyrenees PlaybookFrench riversEuro Nymphingsubsurface methods
Booking & contacts