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
12:40 CST
34°C
25°C
Mostly sunny
Weather News
Rain, storms and snow loom for Australia's southeast
11:36 EST
The best rain in three-to-six months will soak parts of the Murray-Darling Basin during the next three days, before a wintry blast grips Australia's southeast.
Far north QLD gets a drenching
09:31 EST
Heavy rain has fallen over Queensland's far north and there is more tropical activity on the cards this week.
NSW School-children say YES to sunshine
12:51 EST
New South Wales: The Premier State, the state other states love to hate.
