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
13:40 CST
28°C
25°C
Possible thunderstorm
Weather News
Monsoon burst causes havoc on Darwin roads, minor flooding
14:24 EDT
It has been a wet 24 hours in Darwin, with a dumping more than 200 millimetres of rain over the city, causing havoc on the roads.
Sydney weather: City sizzles as mercury soars past 40C in some areas
14:08 EDT
Sydney's sweaty summer has continued with the mercury passing 40 degrees Celsius in parts of the city.
Man drowns rescuing girl from floodwaters in WA's Kimberley
14:02 EDT
A man has drowned after rescuing a young girl from floodwaters on the Ord River, in WA's far north Kimberley.
