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

Queensland's first cyclone of the season predicted to form in the Gulf

16:52 EDT

The Bureau of Meteorology (BOM) says it expects Queensland's first cyclone this season will form by Sunday afternoon in the Gulf of Carpentaria, near the Northern Territory-Queensland border.

A bit of rain on the way for a dry Perth

14:22 EDT

After a very dry couple of months, Perth is finally getting a run of wet days, albeit nothing too heavy.

'Rain guilt': When outback rain becomes a touchy subject to discuss with your neighbours

10:11 EDT

"Did you get any rain? How much did you get? Much rain up your way?" These questions are part of any conversation in rural Australia.