The second Richard-Hadlee Trophy one-dayer was abandoned without a ball bowled as heavy rain and damp outfield handed New Zealand an unassailable lead in the three-match series.
This is second washed out contest at Napier on trot.
The Kiwis had beaten Aaron Finch-led Australia in a nail-biting first ODI. Despite Marcus Stoinis heroic 161-ball 146 in the chase of 287, Australia fell six runs short at Auckland.
The visiting party had received a severe blow before the Auckland contest as their stand-in captain Matthew Wade was side lined due to a back injury. The wicketkeeper, however, has been sent back to Melbourne to ensure his timely recovery ahead of the Indian tour.
The two sides now move to Hamilton for the final on Sunday.