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

BlazeAid: Plans to expand disaster help to include pest management help for landholders

09:24 EST

A national disaster volunteer group wants to expand its services to assist landholders with their pest management.

Queensland weather: Parts of south-east colder than Granite Belt as temperatures drop

08:41 EST

The big chill has hit Queensland's south-east coast, which was colder this morning than the Granite Belt and Darling Downs.

Canberra shaking and shivering

15:48 EST

After a few cold mornings, the cold days have now started in the ACT.