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

Adelaide weather: Houses damaged by wild winds, Seaford train services cancelled

21:37 EST

High winds described by the State Emergency Service as a "storm cell" have ripped through Somerton Park in Adelaide, damaging roofs and bringing down trees.

Melbourne cold front brings rain, high winds, Bureau of Meteorology says

19:56 EST

A "fairly active" cold front has caused problems on the road during Melbourne's evening peak hour, as high winds and rain hit the city.

Rare 'morning glory' roll cloud sighting in outback Queensland

18:26 EST

A rare cloud formation, often called the morning glory, has rolled across outback Queensland delighting locals.