Fairfax Media Network

Agriculture Weather


NINO3.4 Index

  • location
  • Aus

The NINO3.4 index is one of several El Niño/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 Niño 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 Niño or La Niña event is identified if the 5-month running-average of the NINO3.4 index exceeds +0.4°C for El Niño or -0.4°C for La Niña for at least 6 consecutive months.

Southern Oscillation Index

SOI

Nino3.4 Index

Nino3.4
Display Your Local Weather

Weather News

July records falling in WA

16:17 EST

July temperature records are being broken across Western Australia today.

Victoria weather: Severe weather warning issued for damaging, destructive winds

15:58 EST

A severe weather warning for damaging and destructive winds has been issued for much of Victoria on Saturday, with the state also expecting unusually warm winter temperatures.

Southern states brace for wild weekend

13:17 EST

Unseasonably warm weather and damaging winds will sweep across Australia's southern states during the next three days ahead one of the strongest cold fronts so far this year.