Stillwater · Granite · Comunidad de Madrid / Sierra Norte (lower Lozoya system), ES

Embalse de El Atazar

Embalse de El Atazar — 006539 - Embalse de El Atazar

Madrid's largest reservoir, on the lower Lozoya system 70–90 minutes north-east of the city.

Poor · Pike
White baitfish streamer · 8–10
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

Seasonally this is the right time to be here, but today's conditions are not doing Embalse de El Atazar many favours. It can still fish, but temper expectations.

What moved it
  • WindW 19 km/hGentle breeze
Today's fly
WB
White baitfish streamer8–10
Strip it for fish chasing fry or in coloured water.
Conditions on the water
Estimate
Wind
Gentle breeze
W 19 km/h
N
W
from the west
Wave40 cm chop
Water temp22.3°C
Air temp32°C
CloudOvercast
Pressure1014 hPa
Rain · recent0.0 mm

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

Reservoir levelas of 7 Sep
75% 10-yr norm
Steady
71% full
About normal
-4 ptsvs seasonal norm
-13 ptsvs last year
-1 ptsthis week
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 22.3°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 22.3°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

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.

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(1)

Hatch predictions

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Through the year
0–3 scale · September 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
Daphnia SwarmHatch
2
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.

WB
White baitfish streamerTop
8–10 · Streamer
Strip it for fish chasing fry or in coloured water.
Permits & access
Permit required — see local rules.
  • Comunidad de Madrid licence required
  • Check the current accessible shoreline — water-level changes can isolate bank access points and reveal or submerge bays
  • No fishing in the buffer zones around the dam infrastructure.
What's coming
Plan ahead
5-day outlook
Condition match
49%
Cloud50%
Wind65%
Temp25%

Conditions are away from Embalse de El Atazar's sweet spot — it usually fishes best in ripple wind with cloud skies.

Other water nearby · 5
Gallery · 2
  1. Embalse de El Atazar — 006539 - Embalse de El Atazar
    006539 - Embalse de El Atazar
  2. Terrain map of the venue
    Terrain map
About this water

Madrid's largest reservoir, on the lower Lozoya system 70–90 minutes north-east of the city. Big, scenic, serious water that is not easy to read — bank access varies by water level and the steep walled arms mean covering water is a real exercise. Holds black bass, pike, carp, and barbel. For the fly angler this is an exploratory day, not a beginner trout substitute: lower catch certainty but genuine potential for the angler willing to walk and search.

  • Reservoir
  • Granite
Why this score
  • High temperatures may push fish deeper and reduce surface activity.
Related guides
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