Freestone · Limestone · Aude / Axat, FR

Aude (upper)

The Aude river flowing beneath a stone bridge at Axat, with wooded mountains behind

The upper Aude at Axat tumbles through limestone gorge where fishing is secondary to the sheer drama of the place.

Poor · Brown Trout
CDC Emerger · 16-18
New ruleReported 7 Aug 2026

Severe drought restrictions (crise) in force

The 3. Secteur Aude amont (hors axe réalimenté) zone (Dept 11) is at crise — 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°37639 ↗

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date.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
  • Flow2.2 m³/sLast reading 7h ago
  • Water temp22.0°C
  • ClarityClear
Today's fly
CDC Emerger
CDC Emerger16-18
Dead-drift
Conditions on the water
Live gauge
Flow
Steady
2.2 m³/s
Last reading 7h ago
Water temp22.0°C
ClarityClear
Weather24°C
WindW 17 km/h
Pressure1016 hPa
Rain · recent0.0 mm
Rain · ahead2.9 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 22°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 2 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
Grayling seasonSeason
1
2
2
2
1
GrannomHatch
2
2
Evening SedgeHatch
2
3
3
3
2
Large Dark OliveHatch
1
2
2
1
Iron BlueHatch
1
2
2
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 permits.
What's coming
Plan ahead
5-day outlook
Cooler water nearby · 2
Probably above the Brown Trout safety line — these are likely cooler, but carry a thermometer.
Pisciculture de la Fajolle
45 km
~19°C
Rainbow trout · Brown trout · Char
Pisciculture des Chutes de l'Aston
58 km
~20°C
Rainbow trout · Brown trout
Gallery · 2
  1. The Aude river flowing beneath a stone bridge at Axat, with wooded mountains behind
    The Aude at Axat
  2. Terrain map of the venue
    Terrain map
About this water

The upper Aude at Axat tumbles through limestone gorge where fishing is secondary to the sheer drama of the place. Designated no-kill, fly-only, barbless stretch. Wild brown trout. Technical pocket-water fishing in clear flows. Spring through early autumn offers consistent opportunity. Modest gradient makes wading workable. Permits required; check Aude prefectural regulations.

Hatches & food

No emergence timing has been documented for the upper river, but OFB monitoring at Escouloubre and Axat confirms a diverse stonefly, caddis and mayfly fauna (including Perla, Isoperla, Rhyacophila, Sericostoma and Ephemerella) — direct evidence of a rich food base at these specific stations, not a calendar for the whole upper Aude.

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

WFD classification · FRDR201

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 Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity57 × 12%6.8
Limiting factor: Water temperature (22°C) is outside Brown Trout's preferred range (10–16°C)= 54
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
Apple MapsGoogle Maps
Seasons & zones
  • Trout 2nd Saturday of March → 3rd Sunday of September
  • Grayling 3rd 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.

Related guides
Grayling Playbookgrayling tacticsPyrenees PlaybookFrench riversEuro Nymphingsubsurface methods
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