Chalk · Normandy / Eure (Seine tributary), FR

Andelle

Andelle fishing venue photo
Prime · Brown Trout
Spent Spinner · 16-20
Primelive now
About as good as it gets
River steady at a fishable height. On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
90% confidence
What moved it
  • Level0.46 mLast reading 8h ago
  • Water temp15.1°C
  • ClarityClear
Today's fly
Spent Spinner
Spent Spinner16-20
Upstream dry
Conditions on the water
Live gauge
Level
Steady
0.46 m
Last reading 8h ago
Water temp15.1°C
ClarityClear
Weather16°C
WindSW 14 km/h
Pressure1013 hPa
Rain · recent16.9 mm
Rain · ahead7.7 mm

Live readings only. Trends shown where the gauge supports them.

Water temperature for Brown Trout
Ideal
15.1°Cideal 10–16°C
0°14°28°
How to fish it · for Brown Trout
When
Through the open trout season. Iron Blue and CDC grannom in April; olives through May; sedges through summer evenings; small dark flies into autumn.
Where
Pool tails and weeded glides through the Eure chalk-stream stretches. The Andelle is intimate Seine-tributary water.
Method
Upstream dry to spotted rising fish; long fine leader. The water reads clear — careful approach matters more than fly choice. Move slowly upstream, cast accurately, accept the result.
Kit
9 ft #4 — French karst-stream default. Floating line, 14 ft leader to 4 lb fluoro. Polarising glasses non-negotiable.
Why this works
Excellent — water temperature is right today, though time of day could be better.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 12 active hatches hour by hour with Pro.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 with Pro.

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Evidence
Survey-backed · regionalHigh 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
2
2
2
1
Freshwater ShrimpHatch
2
3
3
3
3
3
3
3
3
3
3
2
Mayfly (Green Drake)Hatch
2
2
Brown SedgeHatch
2
3
3
3
2
Small SpurwingHatch
2
3
3
3
2

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 permits
  • Some beats are private/estate water — verify access.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Pisciculture de la Lieurre
7.0 km
Rainbow trout · Brown trout
Salmoniculture de l'Andelle
10 km
Rainbow trout
Pisciculture du Moulin
12 km
Rainbow trout
Normandy Chalk Streams (Private Estate Network)
14 km
Brown trout · Grayling
Arques
22 km
81
Brown trout · Grayling · Sea trout
Gallery · 4
  1. L'Andelle a Perriers-sur-Andelle
    L'Andelle a Perriers-sur-Andelle
  2. Abbaye de Fontaine-Guérard
    Abbaye de Fontaine-Guérard
  3. Photo of Andelle
    Andelle — image via Wikipedia (Andelle)
  4. Terrain map of the venue
    Terrain map
Water quality (WFD)
  • Ecology: Moderate
  • Chemical: Unknown
What this classification means

WFD ecological status Good → Moderate corrected to EEA WISE 2022 (3rd RBMP) classification for waterbody FRHR241 (was a stale earlier-cycle value). Source: EEA WISE SWB_SurfaceWaterBody (discodata.eea.europa.eu), verified 2026-06-18.

WFD classification · FRHR241

The full read · show the working · for Brown Trout · confidence 90%
How the 83 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity65 × 12%7.8
Conditions total= 83
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitysurvey-backed invertebrate datasurvey
What would change the calculation
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 → 31 December

    France national rule: grayling opens 3rd Saturday of May in all waters. In 2nd category waters, grayling remains open until 31 December. Departmental regulations may impose earlier closing dates. Always check the relevant département's 2026 arrêté préfectoral.

Related guides
Chalkstream Playbookchalk stream tacticsGrayling Playbookgrayling tacticsPyrenees PlaybookFrench rivers
Booking & contacts