Light snow fell to near sea level in Lyttelton Harbour overnight Saturday but the worst of the bad weather appears to be over.
Heavy snow that hit the South Island – and lightly dusted Christchurch – is set to clear.
The snow left people stranded and caused traffic problems but MetService duty forecaster Claire Flynn said the worst was now over.
Some light showers were forecast for areas north of Otago and inland Canterbury on Monday morning and sleety showers would linger in Christchurch and Ashburton, north to Kaikoura.
Flynn said road warnings would remain in place for Lewis, Porters and Arthur’s passes.
Snow would affect the areas overnight with up to 3 centmetres expected in the Lewis Pass, three to five in Porters Pass and three to six in Arthur’s Pass.
Tuesday should be fine for most parts of the South Island, Flynn said.
The general warning for motorists to carry chains on all alpine pass routes in the South Island remains.
NZ Transport Agency journey manager Lee Wright said black ice after Sunday’s snow and sleet may also cause problems for motorists in shaded areas on Monday morning.