LIVE DATA

El Niño Live Monitor

Real-time ENSO status · NOAA Oceanic Niño Index · live sea-surface temperatures · country impact lookup

DATA SOURCES NOAA CPC · Open-Meteo
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Global ENSO status Reading live data…
— ONI index
— live events worldwide
— open SOS requests
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🆘 SOS Help Centre

In danger or need urgent help during a disaster? Post a request — anyone can see it on the live board and respond. Helpers: choose a case, offer help, and alert the right authority.

Connecting to the live Help Centre…
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El Niño status & your country

CURRENT ENSO STATE Loading…
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— °C ONI
La Niña −2.0 Neutral 0.0 El Niño +2.0

Reading the latest Oceanic Niño Index…

What is this? El Niño and La Niña are the two opposite phases of a natural Pacific Ocean cycle (ENSO) that shifts rainfall, drought, floods, heat and storms across the whole world. The number above (the ONI) tells you which phase we are in.

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La Niña (below −0.5°C) Cooler Pacific — drought in some regions, heavy rain & floods in others.
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Neutral (−0.5 to +0.5°C) Near average — no strong global push either way.
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El Niño (above +0.5°C) Warmer Pacific — often drought in Asia/Australia/Africa, heavy rain in the Americas, and more global heat.

🌍 Why it matters to you: this cycle influences the weather where you live — search your country above to see your specific risk and what to do.

Learn more: NOAA ENSO basics ↗ · WMO ↗

Country impact

Search a country

Use the search box above to pick a country. You'll see its documented El Niño and La Niña climate impacts, the impact that matters under today's ENSO state, plus a live 7-day weather and rainfall snapshot.

Niño regions — this week

NOAA CPC weekly
Loading weekly sea-surface temperatures…

Official ENSO forecast

IRI / NOAA CPC

Protection & emergency help

Live hazards · official safety guidance

Search a country above to see its live hazard signals (flood, air quality, active wildfires/storms), how to protect yourself for the hazards it faces, and emergency contacts. Guidance is summarised from Ready.gov, Red Cross/IFRC, CDC, WHO and WMO.

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Map & live climate data

Pacific & global — Niño regions, SST & live natural events

OpenStreetMap · Open-Meteo · NASA EONET
Niño 3.4 region
Live SST points
Selected country
CoolerWarmer than normal

Niño 3.4 live SST samples

Open-Meteo Marine
PointCoordinatesSea-surface temp
Fetching live sea-surface temperatures…

Oceanic Niño Index — recent history

NOAA CPC · 3-month running mean

Outlook

Observed trend

Building outlook from the observed ONI trajectory…

This summarises the observed trajectory and distance to NOAA's ±0.5°C thresholds. It is not a probabilistic forecast. Official probability forecasts are issued by NOAA CPC and the IRI/CPC ENSO plume.

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Research & open data

Research & open data

Download · methodology · API

Download the data

Every value the app shows, exported with source & methodology in the file header. Free for research and reuse — please cite the upstream sources.

  • ONI updates monthly (NOAA CPC)
  • Niño-region SST updates weekly
  • Weather · SST · flood · air updates live (Open-Meteo)
  • Events · earthquakes 10–20 min (EONET · USGS)
View full ONI data table

Methodology & provenance

  • ONI (El Niño index): NOAA CPC Oceanic Niño Index — 3-month running-mean SST anomaly for Niño 3.4 (5°N–5°S, 120°–170°W). Thresholds: El Niño ≥ +0.5 °C, La Niña ≤ −0.5 °C, each for 5 consecutive overlapping seasons.
  • Weekly Niño-region SST: NOAA CPC weekly SST & anomalies for Niño 1+2, 3, 3.4, 4 (1991–2020 base) — more current than the monthly ONI.
  • Official forecast: IRI/CPC probabilistic ENSO forecast (El Niño / Neutral / La Niña probabilities per season).
  • Live SST & weather: Open-Meteo Marine + Forecast APIs; flood from GloFAS river discharge; air quality (PM2.5 / US-AQI).
  • SST-anomaly imagery: NASA GIBS — GHRSST L4 MUR sea-surface-temperature anomalies.
  • Active hazards: NASA EONET (wildfires, storms, floods, drought) · USGS (earthquakes M2.5+).
  • Impacts & guidance: documented ENSO teleconnections (NOAA, WMO, IRI) and preparedness from Ready.gov, Red Cross/IFRC, CDC, WHO.

Primary forecasts: NOAA CPC advisory ↗ · IRI/CPC plume ↗

Open data & API

A live, CORS-open endpoint serves the official NOAA ONI table:

# Live ONI (CORS: Access-Control-Allow-Origin: *)
fetch('https://elnino-oni.uvin95dev.workers.dev')
  .then(r => r.text())

# Weekly all-region SST via ?url=
?url=https://www.cpc.ncep.noaa.gov/data/indices/wksst9120.for

Other feeds are free & CORS-open — build directly on:

How to cite

El Niño Live Monitor (IAMUVIN / Uvin Vindula), elnino-live-monitor.web.app. Data: NOAA CPC, IRI/CPC, Open-Meteo (CC-BY 4.0), NASA EONET & GIBS, USGS, OpenStreetMap. Accessed .

Frequently asked questions about El Niño & La Niña

Is El Niño happening now (2026)?

The ocean is warming rapidly toward El Niño. In mid-2026 the latest weekly Niño 3.4 anomaly is around +1.5 °C (El Niño strength) and the official IRI / NOAA CPC forecast puts the probability of El Niño at 97–98% through early 2027, even though the smoothed monthly Oceanic Niño Index (ONI) still reads near neutral. This page shows the live, up-to-date status above.

What is El Niño?

El Niño is the warm phase of a natural climate cycle called ENSO (El Niño–Southern Oscillation) in the tropical Pacific Ocean. It shifts rainfall, drought, floods, heat and storm patterns across much of the world.

What is the difference between El Niño and La Niña?

El Niño is the warm phase (warmer-than-normal central and eastern tropical Pacific) and La Niña is the cool phase. They are opposite ends of the same ENSO cycle and tend to produce opposite weather impacts in many regions.

What is the Oceanic Niño Index (ONI)?

The Oceanic Niño Index (ONI) is NOAA's official El Niño / La Niña index: the 3-month running-mean sea-surface-temperature anomaly in the Niño 3.4 region. El Niño is identified at ONI ≥ +0.5 °C and La Niña at ≤ −0.5 °C, each sustained for five overlapping seasons.

How does El Niño affect my country?

Effects vary by region: El Niño often brings drought to Indonesia, Australia, India and southern Africa, heavier rain and flooding to Peru, Ecuador and the southern United States, and more global heat. Search your country above for its specific documented impact, live weather and hazard signals.

How can I prepare for El Niño?

Build an emergency kit and family plan, learn your local flood, drought, heat and storm risk, follow your national meteorological agency, and keep emergency numbers handy. This site provides per-hazard protection guides (drought, flood, cyclone, heat, wildfire) and emergency contacts by country — and works offline.

Is the data official and accurate?

Yes. The site uses official, authoritative sources: NOAA CPC (ONI and weekly SST), IRI / NOAA CPC (forecast probabilities), NASA (live events and SST-anomaly imagery), USGS (earthquakes) and Open-Meteo (live weather). Every value is sourced. It is for awareness and does not replace official local warnings.

Is El Niño Live Monitor free?

Yes — completely free, in six languages, installable as an offline app (PWA), with a peer-to-peer SOS Help Centre where anyone can request or offer emergency help.

🆘 Request emergency help

Not set — tap “Use my location”, or it will use your selected country.