ENSO signal approaching neutral
The current warm phase of the El Niño-Southern Oscillation has ended and is not expected to influence New Zealand’s climate over the next few months.
Most forecast models of the development of the El Niño-Southern Oscillation are predicting neutral conditions through late autumn and winter.
Sea surface temperatures around New Zealand were above average at the end of the month.
Mean sea surface temperature departures from normal.
Update on the SOI
The mean Southern Oscillation Index (SOI) for April was -0.6, with the three month