Fairfax Media Network

Agriculture Weather


NINO3.4 Index

  • location
  • Aus

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

Southern Oscillation Index

SOI

Nino3.4 Index

Nino3.4
Display Your Local Weather

Weather News

BoM issues severe weather warning for Victoria, 100kph winds predicted

05:22 EST

A severe weather warning has been issued for Victoria, with winds of up to 100 kilometres per hour predicted.

Searing heat gripping QLD

16:17 EST

Summer-like conditions continue to infiltrate into the Queensland autumn.

Wind-battered SA, TAS and VIC in for further blasts

11:29 EST

On the weekend wild winds battered South Australia, Tasmania and Victoria, toppling trees and bringing down powerlines and there is more of that on the way.