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What Is El Niño? Climate Pattern in Plain English
In brief
El Niño is a recurring warming of equatorial Pacific Ocean surface temperatures that can shift weather patterns worldwide. Agencies such as NOAA track Oceanic Niño Index updates — it is not a single storm.
El Niño is a recurring warming of equatorial Pacific Ocean surface temperatures that can shift weather patterns worldwide. Agencies such as NOAA track Oceanic Niño Index updates — it is not a single storm.
El Niño vs La Niña?
La Niña is the cooler counterpart phase in the same oscillation family.
Does it cause every heatwave?
No. It changes probabilities; local forecasts still matter.
Where to check?
NOAA Climate Prediction Center and national meteorological services.
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Last updated: 12 Oct 2026. Re-check linked official sources before citing figures.
Why it matters
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People also ask
Is this a forecast for my city?
No — check your national weather service.
Related monsoon?
See monsoon-withdrawal-india-explained.
Investment advice?
No.
Sources
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