- Ecology: Unknown
- Chemical: Unknown
Rules at a glance
- Free fishing
- Fly only
How to fish it · for Rainbow
When
Conditions are not ideal but fishable at Pisciculture Moulin de la Chaise Dieu du Theil. 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 Booby (8-10) on a fast strip on floating line or static on sinking. 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. When no hatch is visible, a buzzer team — black stripped quill on the point, attractor or pearl-rib on the top dropper — is the default starting point on any UK stillwater.
The plan
Plan A
Start with Booby (8-10) on a fast strip on floating line or static on sinking. 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. When no hatch is visible, a buzzer team — black stripped quill on the point, attractor or pearl-rib on the top dropper — is the default starting point on any UK stillwater.
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
See the full sub-surface read with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 2 with Pro.
Start free trial14-day free trial. Cancel anytime.
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.
- Private commercial fishery
- Fly fishing only (dry fly, nymph, streamer); 12ha/3km river/5 connected ponds; hosts Troutmasters competition rounds
What's coming
Plan ahead
5-day outlook
Condition match
41%
Cloud25%
Wind65%
Temp25%
Conditions are away from Pisciculture Moulin de la Chaise Dieu du Theil's sweet spot — it usually fishes best in ripple wind with cloud skies.
Other water nearby · 5
Water quality (WFD)
Why this score
- High temperatures may push fish deeper and reduce surface activity.
Directions
Seasons & zones
- Trout Year-round (venue's own season — see access_notes) → Year-round (venue's own season — see access_notes)
Related guides
Booking & contacts
Pisciculture Moulin de la Chaise Dieu du Theil
How to fish it · for Rainbow
When
Conditions are not ideal but fishable at Pisciculture Moulin de la Chaise Dieu du Theil. 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 Booby (8-10) on a fast strip on floating line or static on sinking. 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. When no hatch is visible, a buzzer team — black stripped quill on the point, attractor or pearl-rib on the top dropper — is the default starting point on any UK stillwater.
The plan
Plan A
Start with Booby (8-10) on a fast strip on floating line or static on sinking. 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. When no hatch is visible, a buzzer team — black stripped quill on the point, attractor or pearl-rib on the top dropper — is the default starting point on any UK stillwater.
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
See the full sub-surface read with Pro.
Start free trial14-day free trial. Cancel anytime.
Beyond the hatch · worth watchingambient prey
Hatch predictions
Top prey shown — see all 2 with Pro.
Start free trial14-day free trial. Cancel anytime.
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.
- Private commercial fishery
- Fly fishing only (dry fly, nymph, streamer); 12ha/3km river/5 connected ponds; hosts Troutmasters competition rounds
What's coming
Plan ahead
5-day outlook
Condition match
41%
Cloud25%
Wind65%
Temp25%
Conditions are away from Pisciculture Moulin de la Chaise Dieu du Theil's sweet spot — it usually fishes best in ripple wind with cloud skies.
Other water nearby · 5
Water quality (WFD)
- Ecology: Unknown
- Chemical: Unknown
Why this score
- High temperatures may push fish deeper and reduce surface activity.
Directions
Seasons & zones
- Trout Year-round (venue's own season — see access_notes) → Year-round (venue's own season — see access_notes)
Related guides
Booking & contacts