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

Weather forecasts are not immune to COVID-19

13:19 EDT

The World Meteorological Organisation (WMO) is concerned about the impact COVID-19 is having on international weather forecasts and climate monitoring.

Australian agriculture bounces back to life as BOM heralds wet start to 2020

12:30 EDT

Parts of eastern Australia have seen the wettest start to a year in nearly a decade, sending agricultural production bursting back to life.

Another wet month for parched Murray-Darling Basin

15:54 EDT

For the first time since 2017, the Murray-Darling Basin has just had back-to-back months with above average rain.