El Niño Forecast

🇧🇷 El Niño and La Niña in Brazil

El Niño is currently active (Niño 3.4: +3.4 °C), so these effects are the ones to watch now.

Current stateEl Niño Very strong NOAA: El Niño Advisory · issued 8 October 2026
Niño 3.4 this week+3.4 °Cweek of 2026-10-28

How much warmer (+) or colder (−) than normal the sea is this week in the Niño 3.4 zone of the Pacific.

Latest ONI+2.2 °CJAS 2026

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.

Sea surface (Niño 3.4)30.2 °Cactual temperature

The real sea surface temperature measured there, not the difference from normal.

Next NOAA update12 November 2026monthly discussion

Date of NOAA's next official El Niño / La Niña report.

Weather forecast, next 7 days

São Paulo

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Rio de Janeiro

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Manaus

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Fortaleza

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Porto Alegre

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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 Brazil

Drought in the north and northeast (including the Amazon, with low rivers and fires) and heavy rain and floods in the south.

La Niña in Brazil

More rain in the north and northeast, drier conditions in the south.

These are typical tendencies; each event differs in timing and intensity. For local forecasts and warnings, follow INMET.

Frequently asked questions

How does El Niño affect Brazil?

Drought in the north and northeast (including the Amazon, with low rivers and fires) and heavy rain and floods in the south.

How does La Niña affect Brazil?

More rain in the north and northeast, drier conditions in the south.

Where can I find official forecasts for Brazil?

Follow INMET, the official source for local forecasts and warnings.

Other countries

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