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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

10:30 CST

Today

29°C

Tonight

25°C

Possible thunderstorm

possible_thunderstorm

Weather News

NSW weather: Foreign student swept off Nobbys Beach rocks remains missing

10:43 EDT

A man remains missing after being swept off rocks and into the sea at Nobbys Beach at Newcastle in the New South Wales Hunter region.

Wet start of the week coming to Melbourne

13:46 EDT

Stunning sunny skies across Victoria are about to give way to wet weather, especially in the south.

Wet and wild week for coastal Queensland

12:52 EDT

With a lingering coastal trough and developing low pressure system, the coming week is set to be soaking and thundery for many parts of the Queensland coastal fringe.