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
11:40 CST
33°C
27°C
Mostly sunny
Weather News
Scorching heat for final week of the Big Bash
12:59 EDT
The final week of the Big Bash bandwagon is moving from Australia's west to east, coinciding with the movement of the hottest temperatures.
Heavy rain for southern QLD
12:18 EDT
Overnight, southern Queensland experienced another bout of heavy downpour with storms.
Tennant Creek deluged with 'one-in-50-year' flood
09:47 EDT
The normally dry town of Tennant Creek experienced a deluge on Friday night in what meteorologists said was a one-in-50-year flood.