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

Storms lighting up southeast Queensland

13:48 EDT

A low pressure trough over southeast Queensland triggered widespread thunderstorms on Saturday and throughout the night, bringing some decent rainfall and lightning strikes.

North America correspondent Conor Duffy reflects on three years of reporting in the US

12:47 EDT

It's become customary for North America correspondents to end their postings with remarks on the tragedy of America's Second Amendment.

Warmth rolling in across Australia this week

12:33 EDT

Warmth will swing across southern and eastern Australia through this week, bringing hot days to several capital cities.