NINO3.4 Index
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
11:20 CST
34°C
26°C
Possible thunderstorm
Weather News
One dead after Mt Warning campers struck by lightning, rescue operation underway
12:19 EDT
A man has died and a woman has been injured after being hit by lightning while camping at Mt Warning, on the NSW north coast, police say.
Farmer's photos of NSW flooding turned into fundraising calendar
10:43 EDT
A farmer who lost nearly all his crops to floods has documented his experience in photographs and these are now being used for a flood relief fundraising calendar.
Skiing on summer snow
10:10 EDT
December snow is attracting skiers and boarders to Australia's alpine peaks for the chance to enjoy a rare summer shred.
