Stillwater · Granite · Comunidad de Madrid / west (Río Alberche)

Embalse de San Juan

Embalse de San Juan — File:Pantano San Juan.jpg

Reservoir on the Río Alberche immediately upstream of Picadas, 70–90 minutes west of Madrid.

Poor · Pike
Foam Popper · 12–16
Not the day for it
Good wave on — drift country. Not much stacked in your favour today. Worth an hour if you are nearby, not worth the special trip.
5% confidence
low-confidence read — verify locally

Peak season here starts around September — worth planning ahead.

What moved it
  • WindSE 7 km/hLight breeze
Today's fly
FP
Foam Popper12–16
A dependable searching pattern for these waters.
Conditions on the water
Live gauge
Wind
Light breeze
SE 7 km/h
N
SE
from the south-east
WaveRipple
Water temp
Air temp32°C
CloudClear
Pressure1017 hPa
Rain · recent0.0 mm

Some readings unavailable — check directly before fishing.

Reservoir levelas of 10 Aug
61% 10-yr norm
Steady
82% full
High & steady
+21 ptsvs seasonal norm
+7 ptsvs last year
-1 ptsthis week
Reservoir near full — settled fish across plenty of holding water.
How to fish it · for Pike
When
Pike here are a non-native invasive. High summer fishes poorly, and where catch-and-release is legal warm-water release mortality is high; elsewhere the official advice is to remove any pike caught from the water rather than return it. Defer until water cools below 19°C.
Where
Water at 32.3°C — too warm to target pike today: poor sport, and where catch-and-release is legal (designated pre-2007 waters) warm water makes released fish die. Where it isn't, the official advice is to remove any fish caught from the water rather than return it. Either way, wait for cooler water.
The plan
Plan A

Water at 32.3°C — too warm to target pike today: poor sport, and where catch-and-release is legal (designated pre-2007 waters) warm water makes released fish die. Where it isn't, the official advice is to remove any fish caught from the water rather than return it. Either way, wait for cooler water.

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.

Either bank or boat

Good ripple suits both bank and boat. Bank: work inflows, dam walls, and points. Boat: broadside drift covering wind lanes.

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
Pike fly box

A general southern European warmwater fly pack for barbel, carp and mixed exploratory venues built around slower rivers, canals, backwaters and marginal sight-fishing opportunities. Weighted nymphs, buggy worm patterns, crayfish flies and compact baitfish or leech-style flies matter more than surface trout logic.

OS
Olive streamer
8–10 · Streamer
Strip it for fish chasing fry or in coloured water.
CP
Crayfish pattern
12–16 · Fly
A dependable searching pattern for these waters.
Permits & access
Permit required — see local rules.
  • Comunidad de Madrid licence required
  • Leisure use is heavy — check permitted fishing zones, seasonal restrictions, and any temporary closures around the swimming/boating areas.
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 · 5
Gallery · 2
  1. Embalse de San Juan — File:Pantano San Juan.jpg
    File:Pantano San Juan.jpg
  2. Terrain map of the venue
    Terrain map
About this water

Reservoir on the Río Alberche immediately upstream of Picadas, 70–90 minutes west of Madrid. A leisure water — boats, sailing, swimming — that nevertheless holds a real multi-species fishery: black bass, carp, barbel, pike, and zander. Bank fly fishing is most productive away from the busy leisure shore; the upper arms where the Alberche enters fish better than the dam end. Pre-spawn bass (April–June) and autumn pike are the strongest fly windows.

  • Reservoir
  • Granite
Why this score
  • Wind conditions (ripple) closely match what this water fishes best in.
  • High temperatures may push fish deeper and reduce surface activity.
  • Reservoir near full — settled fish across plenty of holding water.
Related guides
Booking & contacts