Super El Niño Explained: What Ocean Temperatures Mean for 2026 Weather
By Sustainability Awakening • Dr. Ahmad Mahmood
What is El Niño?
The Pacific flips
Trade winds weaken and warm water sloshes east, shifting rain and storms around the globe.
Week of 14 Oct 2026
Niño 3.4 anomaly
+3.3°C
Above-normal sea surface temperature in the central Pacific.
Source: NOAA CPC
The threshold
What makes it “super”?
Weak+0.5°C
Strong+1.5°C
Super+2.0°C or more
Source: 3-month index peak
New in 2026
NOAA's new yardstick
Since February NOAA uses RONI, which strips out background ocean warming. 2026 RONI: +1.69°C.
Source: NOAA CPC, Jul–Sep 2026
Record watch
Odds of a record event
83%
NOAA's chance RONI tops +2.5°C in Oct–Dec 2026.
Source: NOAA CPC, 8 Oct 2026
Below the surface
The ocean is loaded
Upper 300 m heat+3.39°C
Trade winds3 SD weaker
Source: NOAA CPC, Sept 2026
United States
A stormy southern winter
El Niño tends to steer storms and atmospheric rivers into California and the South, December to March.
Around the world
Rain moves, drought follows
India monsoon87% of normal
Amazondrought & fire risk
Australiafire risk
Source: IMD; NOAA
What comes next
La Niña may follow
Very strong El Niños often flip to La Niña within 6–12 months, which can boost Atlantic hurricanes.