El Niño–Southern Oscillation

Current status and outlook for El Niño / La Niña conditions in the tropical Pacific.
Check the Climate School El Niño Hub for more information about ENSO.

Plumes

Traditional and Relative Oceanic Niño Index Model Plumes.

Nino-3.4 SST model plume forecast, issued Oct 2026 — Model predictions — issued Oct 2026

Nino-3.4 Relative SST model plume forecast, issued Oct 2026 — Relative model predictions — issued Oct 2026

Last 22 seasons, all models, issued Oct 2026 — Last 22 seasons, all models — issued Oct 2026