Stillwater · Mixed · Île-de-France / Paris (Bois de Vincennes), FR

Lac de Gravelle

Lac de Gravelle in the Bois de Vincennes, Paris, with reflections of trees and lakeside buildings
Fair · Rainbow
Diawl Bach · 12-14
Fairlive now
Good drifting conditions on Lac de Gravelle
Good wave on — drift country. A useful wave. Work the productive shore.
55% confidence

Lac de Gravelle is often best in spring through autumn.

What moved it
  • WindS 13 km/hGentle breeze
Today's fly
Diawl Bach
Diawl Bach12-14
Retrieve
Conditions on the water
Estimate
Wind
Gentle breeze
S 13 km/h
N
S
from the south
Wave20 cm ripple
Water temp17.8°C
Air temp17°C
CloudOvercast
Pressure1013 hPa
Rain · recent0.0 mm

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

How to fish it · for Rainbow
When
The buzzer is on. Murrough may also come into play as the day warms. The ripple is helpful — fish should move onto the feed and a slow-drifted team or single wet will cover water well. The breeze will be blowing terrestrial insects onto the water — check the wind lanes and downwind margins for rising fish.
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.
The plan
Plan A

Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point. In the ripple, a bushy searching dry (Hopper, Shipman's, Elk Hair Caddis) outperforms flush emergers — it stays visible and holds the surface tension.

Plan B

If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.

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

Top nymph shown — see all 3 guilds with Pro.

Start free trial

14-day free trial. Cancel anytime.

Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 5 with Pro.

Start free trial

14-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.
  • APBV permit required
  • No-kill, fly-only, barbless/de-barbed hooks, landing net mandatory
  • Verify rules and ticket availability with the association before fishing.
What's coming
Plan ahead
5-day outlook
Condition match
71%
Cloud50%
Wind65%
Temp100%

A good match for Lac de Gravelle — most conditions are close to what it fishes best in.

Other water nearby · 3
Étang BEP22 (Chessy)
24 km
Rainbow trout
Pisciculture de Villette
57 km
Rainbow trout · Brown trout · Char
Sources de l'Éclimont
58 km
Rainbow trout · Brown trout
Gallery · 2
  1. Lac de Gravelle in the Bois de Vincennes, Paris, with reflections of trees and lakeside buildings
    Lac de Gravelle, Bois de Vincennes
  2. Terrain map of the venue
    Terrain map
Why this score
  • Temperature (cool) is in the sweet spot for summer fishing.
  • Buzzer is in its seasonal window, boosting the chance of targeted feeding.
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