Freestone · Limestone · Wallonia / Luxembourg Province

Ourthe

Ourthe venue image
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Major Ardennes river flowing through La Roche-en-Ardenne and picturesque Durbuy.

Species

A side-water session, not the main event

Low and clear — careful approach country. Long leader, small flies, slower casts.

75% confidence in this read
Water temperature for brown trout
Cool — slow
6°C est.ideal 10–16°C
0°14°28°
Why this score · for brown trout
  • Temperature3528% weight
  • Flow8022% weight
  • Clarity9518% weight
  • Feeding Time4513% weight
  • Pressure807% weight
  • Prey Activity2812% weight
Conditions
Level
0.31 m
Water temp
6.0°C
Estimated
Clarity
Clear
Air temp
4°C
Wind
SW 13 km/h
Gentle breeze
Pressure
1014 hPa
Rain · 48h
0.0 mm
No meaningful rain
Rain · ahead
7.4 mm
Light rain · next 48h

Live readings — water temperature is an estimate where the gauge does not record it.

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
Fair conditions. Clarity is favourable (95), Prey activity is weakest (28).
Through the year
0–3 scale · May highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
1
Grayling seasonSeason
2
1
1
2
2
2
2
2
2
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.

Gallery · 1
  1. Terrain map of the venue
    Terrain map
Permits & access
Permit required — see local rules.
  • Permis de pêche (Wallonia) / Visverlof (Flanders)
  • Foreign anglers can purchase a Walloon fishing permit (permis de pêche) online or at post offices without residency requirements
  • For Flemish waters, the visverlof is similarly available
  • No prior fishing exam required in either region.
Directions
Apple MapsGoogle Maps
About this water

Major Ardennes river flowing through La Roche-en-Ardenne and picturesque Durbuy. Limestone influence gives clearer water in sections and supports brown trout and grayling. Longer drifts and pools than the small spate streams—a river with character and scale. The lower Ourthe near Durbuy runs through scenery that rewards pausing between casts.

  • Limestone
Seasons & zones
  • Trout3rd Saturday of March → 30 September
  • Grayling1 June → 28 February
Other water nearby · 5
Booking & contacts