🇺🇸 El Niño and La Niña in United States
El Niño is currently active (Niño 3.4: +3.4 °C), so these effects are the ones to watch now.
How much warmer (+) or colder (−) than normal the sea is this week in the Niño 3.4 zone of the Pacific.
Oceanic Niño Index: the 3-month average of that anomaly. It is NOAA's official index: +0.5 °C or more means El Niño; −0.5 °C or less, La Niña.
The real sea surface temperature measured there, not the difference from normal.
Date of NOAA's next official El Niño / La Niña report.
Weather forecast, next 7 days
Los Angeles
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San Francisco
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Houston
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Miami
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Phoenix
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Seattle
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Weather forecast: MET Norway (CC BY 4.0), updated every hour. For official warnings, follow your national weather service.
El Niño in United States
Wetter, stormier winters across the southern US (California, Texas, the Gulf Coast and Florida), milder winters in the north, and fewer Atlantic hurricanes.
La Niña in United States
Drier southern tier (drought in the Southwest), colder north, and more active Atlantic hurricane seasons.
These are typical tendencies; each event differs in timing and intensity. For local forecasts and warnings, follow NOAA and the National Weather Service.
Frequently asked questions
How does El Niño affect United States?
Wetter, stormier winters across the southern US (California, Texas, the Gulf Coast and Florida), milder winters in the north, and fewer Atlantic hurricanes.
How does La Niña affect United States?
Drier southern tier (drought in the Southwest), colder north, and more active Atlantic hurricane seasons.
Where can I find official forecasts for United States?
Follow NOAA and the National Weather Service, the official source for local forecasts and warnings.
Other countries
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