ENSO Forecast

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

ENSO Alert System Status: La Niña  Watch. 

ENSO-Neutral is most likely through the late Northern Hemisphere summer 2025 (56% chance in August – October). Thereafter, a brief period of La Niña conditions is favoured in the fall and early winter 2025-26 before reverting to  ENSO-Neutral.

Below is a chart of Pacific Ocean SST anomalies.