The El Niño climate phenomenon is expected to return by the end of 2026, potentially raising global temperatures and intensifying extreme weather.
This return is significant because the warming effect of El Niño is expected to be amplified by climate change. This synergy could lead to more severe heatwaves and disrupted weather patterns across the globe.
Dr. Michael McPhaden, a climate scientist with the National Oceanic and Atmospheric Administration (NOAA), said that the phenomenon originates in the tropical Pacific Ocean. The timing and likelihood of the event vary by source. One estimate suggests there is up to a 90% probability [1] that El Niño will develop by the end of 2026. Other data indicates a 50% to 60% chance [2] of the phenomenon developing specifically during the July-September period.
El Niño occurs when surface waters in the central and eastern Pacific Ocean warm significantly. This shift alters the atmosphere, often leading to droughts in some regions and heavy rainfall in others. Because the baseline global temperature is already rising due to human-induced climate change, the additional heat from El Niño creates a compounding effect.
Scientists monitor these patterns to provide early warnings for agriculture and disaster management. The increased heat typically affects crop yields and water security in various hemispheres. The current projections emphasize the risk of a hotter-than-average year as the Pacific enters this warming phase.
“The El Niño climate phenomenon is expected to return by the end of 2026.”
The predicted return of El Niño represents a compounding climate risk. While El Niño is a natural cycle, its interaction with long-term global warming suggests that future cycles may break previous temperature records and increase the volatility of extreme weather, necessitating more robust adaptive infrastructure.
