🇦🇷 El Niño and La Niña in Argentina
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
Buenos Aires
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Córdoba
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Rosario
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Mendoza
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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 Argentina
More rain in the northeast and the Pampas in spring and summer — often good for crops — but flooding along the Paraná and Uruguay rivers.
La Niña in Argentina
Drought in the Pampas, with large losses for soybean, corn and wheat.
These are typical tendencies; each event differs in timing and intensity. For local forecasts and warnings, follow the Servicio Meteorológico Nacional.
Frequently asked questions
How does El Niño affect Argentina?
More rain in the northeast and the Pampas in spring and summer — often good for crops — but flooding along the Paraná and Uruguay rivers.
How does La Niña affect Argentina?
Drought in the Pampas, with large losses for soybean, corn and wheat.
Where can I find official forecasts for Argentina?
Follow the Servicio Meteorológico Nacional, the official source for local forecasts and warnings.
Other countries
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