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.
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Weather News
Darwin residents rug up, turn off the fan during coldest night in almost two years
12:50 EST
Darwinites have braved their coldest night in almost two years in typical Territory style â?? with thong socks, cardigans and perhaps even turning off the ceiling fan.
Let the Games begin
11:33 EST
The sun will be shining on Rio De Janeiro as the world tunes in for the first day of the Olympic Games on Saturday.
Great alpine weekend ahead
11:02 EST
Mostly sunny skies and good conditions will greet skiers and snowboarders this weekend, with conditions set to stay good until early next week.
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