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
15:50 CST
32°C
25°C
Possible thunderstorm
Weather News
Southern storms
17:09 EDT
Severe thunderstorm warnings have been issued for parts of South Australia and Victoria this afternoon.
Tasmanian floods: BOM and SES lashed by farmers over weather warnings amid June deluge
17:04 EDT
Forecasting by the Bureau of Meteorology (BOM) and SES phone alerts during flooding in Tasmania last June have been criticised as inadequate.
North, central Queensland passenger rail down after heavy rain
16:54 EDT
There are major disruptions for rail passengers in central Queensland after large sections of the track were damaged following days of torrential rain.
