Gale warnings are in place around most of the country. Winds of 35 knots gusting 50 knots are expected in some areas by late afternoon and early evening
"A low over the Tasman Sea moves across central New Zealand on Tuesday, bringing rain to many areas," MetService says.
"An associated front brings a period of heavy northerly rain to exposed regions from Buller to East Cape.
"Meanwhile, as the low approaches and crosses central New Zealand, a period of southeasterly rain is forecast for eastern parts of the South Island."
Efforts to find two remaining bodies on Whakaari/White Island have been hampered by poor weather this morning.
A Police Eagle helicopter left the mainland about 5.45am to carry out another aerial search of Whakaari/White Island, but was forced to turn back.
"Conditions are being assessed to determine the viability of a second attempt by Eagle or a shoreline search by [a] boat later this morning," police said.
The Police National Dive Squad will not be in the water today, the statement said.