Stillwater · Chalk · Île-de-France / Essonne (Méréville), FR

Pisciculture de Méréville (Lavandières)

Pisciculture de Méréville (Lavandières) terrain map

A small family-run put-and-take fishery in the Juine valley, working the pond system around a mill that has stood since the 18th century.

Fair · Rainbow
Booby · 10–12
Fairlive now
Reasonable autumn fishing likely at Pisciculture de Méréville (Lavandières)
Useful ripple, fishable wave. Worth a session if the wind holds.
59% confidence

Pisciculture de Méréville (Lavandières) is often best in spring through autumn.

What moved it
  • WindS 21 km/hModerate breeze · Gusts to 32 km/h
Today's fly
Booby
Booby10–12
Washing-line
Conditions on the water
Estimate
Wind
Moderate breeze · Gusts to 32 km/h
S 21 km/h
N
S
from the south
Wave40 cm chop
Water temp14.3°C
Air temp12°C
CloudOvercast
Pressure1015 hPa
Rain · recent0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

Head to
Wind driftS wind
Southern end

A southerly has held for 11 hours, running colder than the water (13°C air against 14°C water). The end it blows into is taking that chilled surface water, so try the sheltered southern end instead — off the back of the wind, where the undertow returns food along the bottom. That chill sits in the top of the water, though, and the bed is slower to feel it — on a bottom bait it is the undertow, not the temperature, that puts you at this end. Treat it as a tiebreaker between good swims rather than an override — features and angling pressure usually count for more.

How to fish it · for Rainbow
When
March–November
Where
Start with Booby (10–12) — on the point. Rainbows respond to more active retrieves — try short strips between pauses. If that does not produce, switch depth or speed before changing the pattern entirely.
The plan
Plan A

Start with Booby (10–12) — on the point. Rainbows respond to more active retrieves — try short strips between pauses. If that does not produce, switch depth or speed before changing the pattern entirely.

Plan B

A fry-imitating pattern stripped through the margins can save a blank in autumn.

Watch for

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 3 guilds as a supporter.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 4 as a supporter.

Start free trial

14-day free trial. Cancel anytime.

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
2
2
2
1
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Reservoir BuzzerHatch
2
3
3
3
3
3
2
Lake OliveHatch
2
3
3
3
3
3
2
Silverhorns & LonghornsHatch
1
2
2
2
1

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

Ranked for today
Rainbow fly box

French réservoir fishing with strong competition influence: chironomes, Diawl Bachs, blobs, boobies and active lure work all matter.

ST
Streamer
6–10 · Pattern
Retrieve
Permits & access
Permit required — see local rules.
  • Private commercial fishery
  • Status uncertain — the operator's original website (pisciculturedemereville.com) is dead and there's an unconfirmed report of a 2022 closure, though a newer site under the same phone/email shows active operation
  • Confirm booking and current status directly with the venue.
What's coming
Plan ahead
5-day outlook
Condition match
59%
Cloud50%
Wind65%
Temp60%

A reasonable day here, though cloud isn't quite in the sweet spot.

Other water nearby · 1
About this water

A small family-run put-and-take fishery in the Juine valley, working the pond system around a mill that has stood since the 18th century. Straightforward stocked rainbow trout across four ponds, sold by the half or full day with no catch limit — a relaxed few hours by the water rather than a technical session. Tackle can be hired on site. Treat as provisional until current operating status is confirmed by phone.

  • Fishery
  • Chalk
Water quality (WFD)
  • Ecology: Unknown
  • Chemical: Unknown
Why this score
  • autumn conditions with overcast skies and breezy wind.
Directions
Seasons & zones
  • Trout 1 March → 1 November
Related guides
Booking & contacts