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

Sydney news: Appeal to find James Dalamangas, memorial for Sri Lanka bomb victims

07:24 EST

Here's what you need to know this morning.

Hobart news: Ambulance ramping to be probed by Worksafe, as Jacqui Lambie hopes for a Senate comeback

06:36 EST

This is the Tasmania Now daily blog, bringing you updates from across the island state and beyond.

Adelaide racehorse rescue group posts urgent sale as drought-related feed shortage strikes

06:28 EST

A racehorse rescue organisation has said it is urgently looking for homes for its horses as drought-related feed shortages continue to affect stock owners across Australia.