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
16:50 CST
30°C
18°C
Sunny
Weather News
Further heavy rain for SE QLD, NE NSW
11:57 EST
Rainfall totals from the current spell of wet weather could more than double over the next few days as a low pressure trough lingers over parts of northeast New South Wales, with shifting across the border into Queensland from this afternoon.
Sydney fog causes some public holiday flight delays
09:30 EST
Sydneysiders have woken to a classic pea-souper blanketing the city, with the thick fog forcing the cancellation of flights in and out of Sydney Airport.
Widespread fog causing headaches across southeastern Australia
07:09 EST
Fog and low cloud is causing travel headaches in Queensland, New South Wales, the ACT, Victoria and South Australia.
