NINO3.4 Index

  • index
  • SOI
  • NINO3.4

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.

Now Temperature

At Darwin Ap

14:20 CST

Today

32°C

Tonight

19°C

Mostly sunny

mostly_sunny

Weather News

NSW South Coast residents warned flash flooding will get worse as wild weather continues

12:54 EST

Residents on the New South Wales South Coast hit by flash flooding have been warned conditions will get worse today.

Heavy rain soaks southeast NSW

12:17 EST

A low pressure trough over the New South Wales coast has delivered torrential rain to parts of the Illawarra and South Coast on Saturday, with more on the way.