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World risk · Supply chains and chokepoints · Food, climate & health

El Niño floods leave 100,000 people in Peru without home or livelihood

The test Between 28 Oct 2026 and 30 Apr 2027, Peru's national emergency centre (COEN, under INDECI) reports at least 100,000 people damnificados (home or livelihood destroyed or badly damaged) from rain, floods and mudslides in the 2026-27 rainy season.

Not under way · Confidence: medium · Reviewed 28 Oct 2026 · Scores from 1 to 10

This page answers: What could happen, how it is scored, and who is exposed?

Using this page
  1. Read the two scores: Likelihood and Impact are kept apart.
  2. Check what is happening, each fact with its source.
  3. Use the calendar for the dates to watch.

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Likelihood
5Elevated steady this month
Impact
4Elevated steady this month
Breadth4
Depth3
Duration5
Hard to substitute5
Canada pointNot added0

Impact is the average of the four parts, rounded, plus one point when Canada is directly hit on two or more channels, up to 10.

Two separate scales from 1 to 10. Strature never multiplies or merges them.

What changed

Dated, newest first

  1. Likelihood 6 to 5.
  2. ENFEN: extraordinary magnitude off Peru until January 2027, strong to early autumn; above-normal rain on the north coast, central coast and north-western highlands; above-normal flows in Tumbes, Chira, Piura, La Leche, Jequetepeque from November and Rímac, Chillón from December [1]
  3. ENFEN communiqué 18-2026 keeps the Coastal El Niño Alert [2]
  4. Niño-3.4 at +2.1 C over the past month (8 Oct discussion); strong to very strong El Niño likely through Jan-Mar 2027 [3]
  5. DS 124-2026-PCM: 60-day level-4 emergency in 893 districts of 22 departments and Callao for imminent heavy rain [4]

Why it matters

ENFEN expects an extraordinary coastal El Niño until January 2027, with above-normal rain on the north and central coast through the summer. The government has already declared a level-4 emergency in 893 districts for imminent heavy rain. The coastal El Niño of 2017 left 285,955 people damnificados; by late March 2017 a consultancy put damage at about US$3.1bn; the question is whether this rainy season comes close.

Why Likelihood 5 Pushes: ENFEN extraordinary coastal El Niño to January 2027 and above-normal north and central coast rain; rivers above normal from November; NOAA strong to very strong; level-4 emergency in 893 districts; the 2017 precedent (285,955 damnificados). Brakes: prevention works at 70 points; southern regions normal or dry.

Why Impact 4 Threshold case: 100,000 damnificados.

The other facts on file (5)
  • DU 008-2026: S/179,459,056 to the water authority for 70 critical points [6] (18 Aug 2026)
  • 2017 coastal El Niño: 285,955 damnificados and 1,559,487 affected (COEN, 7 Aug 2017) [7] (7 Aug 2017)
  • 2017 damage US$3,124m by 24 Mar 2017 (interim), roads US$1,259m (Macroconsult) [8] (24 Mar 2017)
  • 2022-23 rainy season to 12 Mar 2023, intensified by Cyclone Yaku: 59 deaths and more than 12,000 damnificados (Indeci) [9] (13 Mar 2023)
  • Canada imported C$7.74bn from Peru in 2025; fruit and nuts (HS 08) 8% [10] (2025)

Where it sits

Bab el-MandebStrait of HormuzStrait of MalaccaPanama CanalSuez CanalTaiwan Strait11. El Niño floods leave 100,000 people in Peru without home or livelihood: Elevated impact · possible1 · Elevated impact · possibleBab el-MandebStrait of HormuzStrait of MalaccaPanama CanalSuez CanalTaiwan StraitINDIAUNITED STATESINDONESIAPERUCOLOMBIAFRANCEPACIFIC OCEANINDIAN OCEANMap data: Natural Earth (public domain).
Bab el-MandebStrait of HormuzStrait of MalaccaPanama CanalSuez CanalTaiwan Strait11. El Niño floods leave 100,000 people in Peru without home or livelihood: Elevated impact · possibleBab el-MandebStrait of HormuzStrait of MalaccaPanama CanalSuez CanalTaiwan StraitINDIAUNITED STATESINDONESIAPERUCOLOMBIAFRANCEMap data: Natural Earth (public domain).

How it spreads

If

Between 28 Oct 2026 and 30 Apr 2027, Peru's national emergency centre (COEN, under INDECI) reports at least 100,000 people damnificados (home or livelihood destroyed or badly damaged) from rain, floods and mudslides in the 2026-27 rainy season.

Not under way

Channels 4 on the card

  1. CanadaExposure only: HS 08 is 8% of C$7.74bn of imports from Peru [10]; no loss sourced.
  2. Roads and portsFloods cut the Panamericana Norte and bridges; roads took 40% of 2017 damage [8].
  3. Farm exportsNorth-coast fruit for export is exposed (no loss figure sourced).
  4. Public moneyReconstruction adds to spending (Strature's view).

Goods 1

  • Fresh fruit

Sectors 4

  • Roads and logistics
  • Agriculture and food
  • Housing
  • Water

Countries 1

Who is exposed

Countries
Peru
Sectors
Roads and logistics, Agriculture and food, Housing, Water
Goods
Fresh fruit

Three scenarios and their signposts

  1. S1

    A wet but managed season

    Heavy rain but cleaned river beds hold; damnificados stay in the tens of thousands.

  2. S2

    2017 again

    Rain over Piura and Lambayeque in February-March overflows rivers; damnificados pass 100,000.

  3. S3

    Rain shifts south

    Central-Pacific warming dominates and coastal rain is lighter than feared.

The signposts of each scenario
PathSignpost
S1COEN weekly emergency report
S2ENFEN February 2027 communiqué
S3NOAA Niño 1+2 readings

No probability is given for the three paths.

Dates to watch

Calendar

The dates to watch

A dot is a day, a bar a month or a year; a hollow mark is tentative. The line marks today.

  1. Jan 2027 End of ENFEN's extraordinary-magnitude window [1] Tentative · Outside event
  2. 30 Apr 2027 End of the rainy season and the scored window Declared · Strature date

    Remind me

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SourceStrature world-risk card; the dates cite the sources below.
Exhibit R-3 · PERU · strature.net

The other side

El Niño rain refills northern reservoirs; Tinajones in Lambayeque is very low for the season [1]. Builders and insurers of flood defences gain work; the S/179.5m programme [6] is a start (Strature's view).

Connected in Strature

Sources

9 sources, numbered as the text cites them

  1. El Niño Costero se extendería hasta el otoño de 2027, según el último reporte del Enfen. Infobae · 17 Oct 2026 · News · confidence medium · retrieved 28 Oct 2026
  2. Comunicado Oficial ENFEN N° 18-2026. ENFEN · 16 Oct 2026 · Official · confidence high · retrieved 28 Oct 2026
  3. ENSO: Recent Evolution, Current Status and Predictions. NOAA Climate Prediction Center · 8 Oct 2026 · Official · confidence high · retrieved 28 Oct 2026
  4. Decreto Supremo N° 124-2026-PCM. El Peruano · 1 Sep 2026 · Official · confidence high · retrieved 28 Oct 2026
  5. Decreto de Urgencia N° 008-2026. El Peruano · 18 Aug 2026 · Official · confidence high · retrieved 28 Oct 2026
  6. Daños producidos por el Niño Costero (COEN, 7 Aug 2017). Congreso de la República · 7 Aug 2017 · Official · confidence high · retrieved 28 Oct 2026
  7. El Niño costero: daños ya suman US$3,124 millones según Macroconsult. RPP · 24 Mar 2017 · News · confidence medium · retrieved 28 Oct 2026
  8. Al menos 59 muertos y más de 12.000 damnificados por lluvias en Perú. Deutsche Welle via Teletica · 13 Mar 2023 · News · confidence medium · retrieved 28 Oct 2026
  9. Canadian International Merchandise Trade, imports by country, 2025. Statistics Canada · 2026 · Official · confidence high · retrieved 6 Oct 2026

Reviewed 28 Oct 2026 · version 1 · last change: Likelihood 6 to 5 · All risks