All 24 models forecast a very strong peak — 18 of them above +3.0°C

Forecast peak of the Niño-3.4 index by model, from the IRI multi-model plume published September 21, 2026. This is the traditional index, which currently reads 0.7–0.9°C higher than NOAA's official relative index.

Dynamical model (physics-based)Statistical model
Data: IRI/Columbia University ENSO forecast plume, September 2026 (values read from the published figure).DisasterAWARE
Show the data as a table
ModelTypePeak (°C)Peak season
CMCC SPS4dynamical4.66DJF
XROstatistical4.28NDJ
AUS-ACCESSdynamical4.13OND
CMC CANSIPdynamical4.08OND
JMAdynamical4.05NDJ
MetFRANCEdynamical3.96OND
KMAdynamical3.60OND
NCEP CFSv2dynamical3.59OND
NASA GMAOv3dynamical3.56NDJ
SINTEX-Fdynamical3.51OND
Wyrtki-CSLIMstatistical3.49NDJ
UCLA-TCDstatistical3.48NDJ
UW PSL-CSLIMstatistical3.42NDJ
BCC_RZDMstatistical3.41NDJ
CPC MRKOVstatistical3.41NDJ
COLA CCSM4dynamical3.36OND
CS-IRI-MMdynamical3.29NDJ
UKMOdynamical3.27OND
CSU CLIPRstatistical2.96DJF
UW PSL-LIMstatistical2.82OND
IAP-NNstatistical2.71SON
IOCAS ICMdynamical2.66SON
LDEOdynamical2.43OND
TONGJI-MLstatistical2.34JFM