FORECASTCONTEXT.COM · THE LARGE-SCALE STATE BEHIND THE FORECAST BRIEFINGMOTIONOUTLOOKMETHODSAPI☀ AUTO

FORECAST CONTEXT

DATA THROUGH 2026-10-12 · UPDATED 2026-10-13 11:02 UTC

ERA5 + GFS2.5°DAILY
BriefingOfficial indicesOfficial · Oceans & ENSO
CPC_Nino34_wk

Niño 3.4 weekly, OISST (CPC)

Weekly (Wednesday-centred) OISST v2.1 Niño 3.4 SST anomaly. — CPC · base 1991–2020