NZ's beaches are heating up again - and may keep warming 6 Jan, 2021 04:00 PM 6 minutes to read Weather experts are monitoring a looming marine heatwave that will be welcomed by beachgoers - but poses dangers for our marine ecosystem. Meteorologists are keeping a close watch on coastal waters that are again running unusually warm nationwide - with the mid-summer peak still weeks away. Water safety advocates have already sounded a warning that the high number of people enjoying the warmer water could lead to more dramas along our coastlines, as Kiwis flock to the beach as daytime highs top 25C. "We are asking if people go rock fishing that they wear a life jacket and tell someone where they are going," Surf Life Saving Northern region head of operations Alan Gibson said.