Fairfax Media Network

Agriculture Weather


NINO3.4 Index

  • location
  • Aus

The NINO3.4 index is one of several El Niņo/Southern Oscillation (ENSO) indicators based on sea surface temperatures.

NINO3.4 is the average sea surface temperature anomaly in the region bounded by 5°N to 5°S, from 170°W to 120°W. This region has large variability on El Niņo time scales, and is close to the region where changes in local sea-surface temperature are important for shifting the large region of rainfall typically located in the far western Pacific.

An El Niņo or La Niņa event is identified if the 5-month running-average of the NINO3.4 index exceeds +0.4°C for El Niņo or -0.4°C for La Niņa for at least 6 consecutive months.

Southern Oscillation Index

SOI

Nino3.4 Index

Nino3.4
Display Your Local Weather

Weather News

Category three cyclone possible for north Queensland as tropical low strengthens: BOM

20:41 EDT

A tropical low brewing 600 kilometres north-east of the Queensland coast could make landfall somewhere between Cairns and Townsville early next week as a category three cyclone or higher, the Bureau of Meteorology (BOM) says.

Cyclone brewing in north Queensland prompting new residents to prepare early

16:26 EDT

Cyclone preparation comes second nature to many north Queenslanders.

Sydney's sodden March

14:34 EDT

Sydney is having its wettest March in 33 years after yet another showery night.