Geneva — The World Meteorological Organization (WMO) has issued a new climate outlook suggesting a 55–60% chance that La Niña conditions could re-emerge between September and December 2025. Despite this potential cooling phase in the Pacific Ocean, global temperatures are expected to remain above average due to ongoing human-induced climate change.

According to WMO Secretary-General Celeste Saulo, the forecast for the El Niño–Southern Oscillation (ENSO) is a critical tool for disaster preparedness and could help save lives and reduce economic losses across agriculture, energy, health, and transport sectors.

While La Niña typically brings cooler ocean temperatures and altered wind and rainfall patterns, the WMO emphasized that anthropogenic climate change continues to drive extreme weather events, disrupt seasonal rainfall, and push global temperatures higher.

Other climate systems—including the North Atlantic Oscillation, Arctic Oscillation, and Indian Ocean Dipole—are also being monitored for their influence on global weather. The latest Global Seasonal Climate Update indicates that much of the Northern and Southern Hemispheres will experience above-normal temperatures from September to November, with rainfall patterns resembling those of a moderate La Niña.