🇵🇪 El Niño and La Niña in Peru
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
Lima
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Piura
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Trujillo
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Cusco
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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 Peru
Heavy rain and flooding on the northern coast (Tumbes, Piura, Lambayeque), landslides (huaicos), warmer sea that disperses the anchovy and hits fishing, and higher risk of dengue.
La Niña in Peru
Cooler sea and a drier northern coast; often good conditions for the anchovy fishery; drier conditions in parts of the southern highlands.
These are typical tendencies; each event differs in timing and intensity. For local forecasts and warnings, follow SENAMHI and ENFEN.
Frequently asked questions
How does El Niño affect Peru?
Heavy rain and flooding on the northern coast (Tumbes, Piura, Lambayeque), landslides (huaicos), warmer sea that disperses the anchovy and hits fishing, and higher risk of dengue.
How does La Niña affect Peru?
Cooler sea and a drier northern coast; often good conditions for the anchovy fishery; drier conditions in parts of the southern highlands.
Where can I find official forecasts for Peru?
Follow SENAMHI and ENFEN, the official source for local forecasts and warnings.
Other countries
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