The heat is on: Marine heatwave to bring balmy sea temperatures to southern New Zealand

Photo / George NovakBeachgoers in the lower half of the country can rejoice, with an approaching marine heatwave expected to bring “balmy sea temperatures”. Difference between forecast and average long-term sea surface temperatures. Then, surface temperatures are forecast to reach 18.4C, compared to the 13.5C average – a difference of almost 5C.”Sea surface temperature forecast. Photo / MetOceanHe said this will be good news for holidaymakers, who will get to enjoy balmy sea temperatures. “Abnormally warm sea temperatures can potentially harm marine life,” he said.