Sea Surface Temperature Update

A fortnightly report, updated over summer, covering sea surface temperatures and anomalies (differences from average) around New Zealand.


Following the Tasman Sea marine heatwave event of 2017-18, this report will help users understand the latest conditions in the ocean and their expected changes over the upcoming weeks.
A hot airmass over New Zealand has led to SST warming of 1.0 to 2.0˚C over the last several days. A southerly change is forecast to occur from Friday into Saturday, ending the spell of unusual warmth.
Over the past several weeks, the sea surface temperatures have warmed in the New Zealand region. They are well above average in the Tasman Sea and also above average in New Zealand coastal waters.