ENSO Forecast

September 2026 El Niño/Southern Oscillation (ENSO) forecast by the Climate Prediction Center of the US National Weather Service. 

ENSO Alert System Status: El Niño Advisory. 

El Niño continues to strengthen, with a strong-to-very strong El Niño likely through January-March 2027 (remaining greater than an 83% chance). 

Below is a chart of Pacific Ocean SST anomalies.