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

Australia's top equestrians reeling after drought forces cancellation of key event

07:42 EDT

The New South Wales Eventing State Championships have been called off after the Hunter Valley competition ground was deemed unsafe because of extremely dry conditions.

North Island set for a soaking this week

13:34 EDT

Residents of New Zealand's North Island are expecting a wet start to the working week.

Lighting up southwest WA

11:31 EDT

Whilst northern parts of Western Australia have seen their fair share of thunderstorms recently, southwestern and southern parts of the state have seen far fewer.