Data and trust
MODIS Terra night pass (about 10:30 pm).
Limits. Gaps where clouds cover the ground.
How to read it
Kelvin: 295 K = 22 degC, 300 K = 27 degC.
Why it matters for Koh Samui
Warm nights make heat waves dangerous for health.
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)