"It might be tougher to get a clear night there but I think Auckland should be okay."
Doolin said the best bet for a clear viewing would be over most of the South Island - except for the bottom of the island - and then areas in the lower North Island like the Wairarapa and Hawke's Bay.
The extraordinarily full appearing moon would be the only supermoon of the year.
However, it would be the first of three full moon supermoons in succession - two full moons in January next year would also count as supermoons.
The last phenomenon that occurred was in November last year, which was touted as the most spectacular "supermoon" since 1948.
"For most of the population, it'll be the best one they've seen in their lifetime," Stardome astronomer Dr Grant Christie told the Herald last year.