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Environment & Climate

UN warns developing El Niño could reach historic strength and drive extreme weather into 2027

The World Meteorological Organization reports ocean temperatures are approaching record highs, threatening widespread drought, severe storms, and food insecurity.

Updated Sep 3, 2026 · 06:19 UTC3 reports

The short version

  • The United Nations and the World Meteorological Organization warned that a rapidly intensifying El Niño is nearly certain to persist through at least February 2027.
  • Pacific sea surface temperatures are projected to peak near 4°C above normal in November, potentially making it the strongest El Niño event recorded in modern history.
  • Multiple regions are already experiencing disruptions, including reduced traffic in the Panama Canal, Indonesian wildfires, and severe drought in parts of the Americas and Africa.
  • Governments and aid agencies are expanding early warning systems, emergency medical deployments, and disaster preparedness to mitigate humanitarian and economic fallout.

Key facts

  • The World Meteorological Organization issued an update indicating a nearly 100% likelihood that the current El Niño event will persist through at least February 2027.[BBC News · Wired]
  • Climate models project sea surface temperature anomalies in the central and eastern tropical Pacific could approach 4°C above average by November.[BBC News · The Guardian]
  • The World Food Programme estimated in August that the intensifying El Niño pattern could expose approximately 50 million people to acute hunger.[The Guardian]
  • Panama Canal authorities scheduled a reduction in daily vessel transits of more than 10% in response to expected rainfall deficits.[BBC News]
  • Wildfires in Indonesia have burned over 107,000 hectares during an extended dry season, prompting cloud-seeding flights and law enforcement operations against illegal land clearing.[BBC News]
  • The United States planned the deployment of the medical ship USNS Comfort to the coast of Peru to deliver medical and technical aid ahead of peak weather disruptions.[BBC News]

What remains uncertain

  • Scientists note that while global warming compounds extreme weather impacts, the extent to which human-caused climate change is actively intensifying natural El Niño cycles remains unconfirmed.[BBC News]
  • Climate researchers caution that the extraordinary magnitude of the event could trigger unforeseen local weather extremes, making precise regional forecasts over the next year difficult to guarantee.[Wired]

Sources