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
12:10 CST
32°C
24°C
Possible thunderstorm
Weather News
Electric skies over WA's Goldfields and Southern Interior
11:11 EST
A low and trough is delivering plenty of lightning to southern central WA to finish off the Easter long weekend.
Wet start to April after a record-breaking March for Lord Howe Island
12:32 EST
Following a very wet March, Lord Howe Island received another good douse of rain during the first week of April 2017.
Sun-soaked Easter Sunday for much of Australia
11:17 EST
Now that the sun has risen on Easter Sunday, celebrations are in full swing, with only a few showers in the north and west dampening the mood.
