Indices
NOAA NCEI monthly temperature departures for the globe (land + ocean) and Asian land.
Limits. Monthly; continental values are land only.
How to read it
degC above 1901-2000 (an older baseline, so numbers look higher than NASA's).
Why it matters for Koh Samui
Ranks the El Nino year for the globe and for Asia.
ENSO status now
- ONI (NOAA CPC)
- +1.80 °C, JJA 2026 (previous +1.39 °C)
- RONI (NOAA CPC)
- +1.36 °C, JJA 2026
- Nino 3.4 weekly (NOAA CPC / OISST)
- +3.0 °C anomaly, week of 16 Sep 2026 (SST 29.6 °C)