According to the India Meteorological Department (IMD), there is a possibility of the El Niño phenomenon developing after July 2026, but definitive clarity on its formation will emerge only in April. Global forecasters, including the U.S. NOAA, estimate that the chances of El Niño forming during the June–August period are around 62%, with the probability increasing later in the year.
Current Climatic Conditions
At present, the Pacific Ocean is experiencing ENSO-neutral conditions, meaning that sea surface temperatures are near average. The La Niña phase is fading, and the transition from neutral to a warm phase (El Niño) may occur over the next few months. This gradual shift is typical of the ENSO (El Niño–Southern Oscillation) cycle, which naturally alternates between El Niño and La Niña every two to seven years.
What is El Niño?
El Niño is the “warm phase” of ENSO, characterized by unusual warming of surface waters in the eastern tropical Pacific Ocean. During this phase:
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Trade winds weaken or reverse direction, turning into westerlies that push warm water from the western Pacific toward the Americas.
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Upwelling of cold water decreases, reducing nutrients for phytoplankton and affecting marine life.
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Tropical species migrate toward cooler areas, disrupting ecosystems.
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Global weather patterns are altered, causing impacts such as dry, warm winters in northern U.S. and Canada, increased flooding in the U.S. Gulf Coast, and drought in Indonesia and Australia.
What is La Niña?
La Niña is the “cool phase” of ENSO, with cooler than average sea surface temperatures in the equatorial Pacific. Key effects include:
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Strengthened trade winds push warm water toward Asia.
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Upwelling along the American west coast increases, boosting nutrient availability for marine life.
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Jet streams shift northwards, causing drier conditions in the southern U.S. and heavier rainfall in Canada.
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La Niña has also been linked to heavy floods in Australia.
Global Forecasts for 2026
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Some climate reports mention the possibility of a “super El Niño”, which could bring record-breaking climate events.
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Regional impacts are already being considered: for instance, Peru expects weak but significant warming, affecting fisheries and agriculture.
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The World Meteorological Organization (WMO) confirms that weak La Niña is fading, ENSO-neutral conditions currently dominate, and the chance of a warm El Niño phase increases later in the year.
Impact on India
In India, El Niño typically reduces rainfall and increases heat, potentially weakening the monsoon. Conversely, La Niña intensifies rainfall, especially in northwest India and Bangladesh, during the monsoon season. Forecasters will monitor developments closely to predict the monsoon’s behavior for 2026.