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

Rivers rising and roads cut across northern Western Australia

11:37 EDT

The Great Northern Highway has been closed between Fitzroy Crossing and Halls Creek, as rivers rise across northern Western Australia following a week of steady rain.

Heat fuelling southern fire danger today

11:12 EDT

Total fire bans are in place for parts of South Australia and Victoria today as temperatures soar ahead of an approaching cool change.

Plastic hives save hot bees in central Queensland

10:36 EDT

A Queensland beekeeper says special hives are helping to keep his bees cool as temperatures soar across the state.