A ridge lies over most of New Zealand on Friday. The airflow over the North Island is light, coming in from the southeast, while a light northeasterly airflow lies over the South Island.
The North Island sees a cold start, then mostly sunny conditions in the west. There is the chance of a shower clipping Northland, especially in the east, due to a southeasterly airflow brushing over the region. Gisborne down through to the Wairarapa sees mainly cloudy skies and the odd light shower now and then.
The South Island has mainly cloudy skies in the west although sun is a little more frequent for North Westland. Mostly sunny elsewhere, however, areas of low cloud or fog are possible to start the day. Expect areas of high cloud during the day also.
– Aaron Wilkinson, WeatherWatch.co.nz