Stillwater · Chalk · Perche / Eure-et-Loir–Orne border

Moulin de Boizard

Moulin de Boizard terrain map
Fair · Rainbow
Parachute Adams · 16-20
New ruleReported 31 Jul 2026

Severe drought restrictions (alerte renforcée) in force

The EURE Amont zone (Dept 28) is at alerte renforcée — 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°37551 ↗

Temporary notices from official orders and recent fishery reports — they clear automatically once out of date. Always confirm locally before travelling.

A respectable few hours, if you choose your moments
Water temperature is the limiting factor today, not the wave. Fish dawn or dusk if you go at all, and handle everything with extra care.
48% confidence
limited data

Moulin de Boizard is often best in spring through autumn.

What moved it
  • WindE 8 km/hLight breeze
Today's fly
Parachute Adams
Parachute Adams16-20
Upstream dry
Conditions on the water
Live gauge
Wind
Light breeze
E 8 km/h
N
E
from the east
WaveRipple
Water temp—
Air temp26°C
CloudClear
Pressure1019 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

How to fish it · for Rainbow
When
Conditions are not ideal but fishable at Moulin de Boizard. The ripple should help fish move and feed more confidently. Very warm conditions — trout have a narrower safe zone of cool, oxygen-rich water. Fish only at first light or last light, use barbless hooks, keep fish in the water during release, and stop if fish struggle to recover.
Where
Start with Spent Spinner (16-20) on a on a floating line. 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 Spent Spinner (16-20) on a on a floating line. 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

Fish early and late, try deeper during the heat of the day with a fast-sinking line.

Watch for

Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.

Bank

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

Sub-surface · on the nymphunder the surface

Hatch predictions

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Beyond the hatch · worth watchingambient prey

Hatch predictions

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Through the year
0–3 scale · August highlighted
J
F
M
A
M
J
J
A
S
O
N
D
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
Permits & access
Permit required — see local rules.
  • Commercial fly fishery
  • River section + reservoir
  • Day tickets required; book in advance.
What's coming
Plan ahead
5-day outlook
Condition match
55%
Cloud25%
Wind100%
Temp25%

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

Other water nearby · 1
Pisciculture Moulin de la Chaise Dieu du Theil
41 km
Rainbow trout · Brown trout
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout Year-round → Year-round
Related guides
Small Stillwater Playbookstillwater tacticsThermal Layers & Troutreading depth and temperaturePyrenees PlaybookFrench rivers
Booking & contacts
Permits & access