ENSO Forecast

October 2025 El Niño/Southern Oscillation (ENSO) forecast by the Climate Prediction Center of the US National Weather Service. 

ENSO Alert System Status: La Niña  Advisory. 

La Niña conditions are present and are favoured to persist through December 2025 – February 2026, with a transition to ENSO-neutral likely in January – March 2026 (55% chance).

Below is a chart of Pacific Ocean SST anomalies.