MetService is warning of possibly damaging winds for Southland, while much of the rest of the South Island is also in for a spell of strong gusts.
There is an orange strong wind warning in place for Fiordland, Southland, and Stewart Island, from 7pm today to 7am tomorrow.
MetService says there could be damage to trees, powerlines, and unsecured structures, and warns driving may be difficult, especially for high-sided vehicles and motorcycles.
A strong wind watch is in place for Queenstown Lakes District, Central Otago, Dunedin, and Clutha, from 9pm today to 9am tomorrow.There are also heavy rain watches in place for for Westland and Fiordland.
"From Tuesday afternoon, winds strengthen over the lower South Island as the approaching weather system brings the potential for heavy rain and strong winds," MetService meteorologist Mmathapelo Makgabutlane said.
MetService says brief rain is expected in the eastern South Island on Wednesday as the weather system moves through, while conditions clear on Thursday.