Other than in Coromandel, Thursday will be mostly fine as well.
Due to one of the final active weather systems of the year, Friday will bring wetter conditions to other parts of the country while warmth continues to rule the east.
Heavy rain and strong winds heralded in by a humid north to northwest flow is expected to lash many locations, including several holiday hotspots.
Over western and central regions from Fiordland to the Coromandel Peninsula and East Cape, the rainfall is likely to meet warning criteria.
There is moderate confidence over northern Fiordland and Westland and western regions of the North Island from the Tararua Range to Taranaki and Taupō.
Those attending Rhythm and Vines this year should pack a poncho as rain is expected to fall the first two days of the popular festival, before a reprieve on the final day, Sunday.
Elsewhere on Saturday, it is predicted that the strong northwest flow would lessen briefly before returning later to deliver further rain and strong to severe northwesterlies to several regions.
From Fiordland to the Coromandel Peninsula and East Cape, Metservice said there is a low degree of confidence in considerable rainfall, while a moderate level of confidence exists over northern Fiordland and Westland.
Additionally, there is little chance of severe gales from Fiordland to Hawke’s Bay from the west to the northwest.
West to north-west winds and rain should subside by late Sunday morning or early afternoon.
There is little chance that the amount of rainfall that falls over Fiordland and Westland on Sunday morning will meet warning criteria and there is also little chance that severe west to north-west gales will make their way from Fiordland to inland areas of Southland, Otago and Canterbury.
