On Friday the large, slow moving high pressure system covering most of NZ is, surprise surprise, not going anywhere!

The high is centred just west of the country in the Tasman Sea.
Cloud moves in to most western regions of both islands, along with winds from the west or southwest, while it’s looking mainly sunny in the east of the country.

Fiordland sees some rain during the day, and so does Southland – then parts of Otago in the late afternoon or evening. 
Canterbury sees a southerly wind shift move in during the late afternoon or evening, but it just brings in some cloud.

– Aaron Wilkinson & Drew Chappell, WeatherWatch.co.nz