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

New temperature records expected as NSW, Queensland brace for second spring heatwave

20:11 EST

Temperature records set on Saturday may not last long, as eastern Australia braces for another heatwave.

Big dry pushes graziers to find lush paddocks in cropping country

15:18 EST

Unusually dry conditions in New South Wales are forcing graziers to seek agistment in north-western Victoria.

Flooded caravan park owner facing ruin after resident's death

14:02 EST

The owner of a caravan park where a man died in floodwaters six months ago says he is facing financial ruin because of a council ruling that he can no longer house permanent residents.