Celeste Saulo

Built World

Issued WMO's June 2026 El Niño bulletin urging global preparation

NOAA declared El Niño on June 11, and the event has since blown past forecasters' early estimates. By October, Pacific sea-surface temperatures exceeded 4.0°C above average in parts of the eastern equatorial Pacific, and NOAA put a strong-to-very strong El Niño through January-March 2027 at greater than 83 percent. The chance the event tops the strongest on record since 1950 reached 83 percent for October-December.

Updated Oct 16