Negative temperatures and snow are expected to blanket parts of the South Island this week, with some places dropping as low as -8degC overnight.
MetService has issued a weather warning of snow for as low as 100m for parts of Southland, Otago and Canterbury on Tuesday through Thursday, with 20cm to 30cm of snow forecast for high-county areas.
It expects "significant snow accumulations below 500 metres" in Southland and Fiordland from Tuesday morning to Wednesday afternoon.
Otago is expected to get a dumping on Tuesday morning, and again on Tuesday night, through to Wednesday evening.
With so much snow also expected in parts of Canterbury, MetService says it doesn't expect it to reach the Garden City, which will bring some relief ahead of America's Cup parade celebrations.
The snow is due to be accompanied by chilling temperatures overnight, with some places dropping well below 0degC throughout the week as a cold front moves up the South Island bringing the nippy nights.
Gore, Queenstown, Wanaka, Mt Cook and Alexandra are all expected to sit below 0degC every night until the weekend.
Coldest overnight temperatures during the week:
- Invercargill -3degC on Friday
- Gore -5degC on Friday
- Queenstown -5degC on Friday
- Wanaka -4degC on Tuesday
- Mt Cook -8degC on Friday
- Alexandra -5degC on Monday
- Timaru -2degC on Friday
- Christchurch -1degC on Friday
- Hokitika 0degC on Friday
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MetService says people should wrap up warm ahead of the wintery weather blast this week, with conditions not expecting to ease until the weekend.