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

Late-season chill grips southeastern Australia

09:24 EST

It feels like spring hasn't started in parts of southeastern Australia, with some places registering their lowest September temperatures in years during the last couple of mornings.

Supplement feed shortage puts a strain on farmers already struggling with drought

09:09 EST

It's the last thing drought-declared Queensland graziers need, but dry conditions are now affecting the production of a wide range of feed supplements given to animals when grass and hay run low.

'Give them the money': Calls for urgent action to fix drought relief scheme

06:30 EST

A tiny fraction of farmers who are eligible for federal drought relief payments are currently receiving them, according to new government figures.