A northwesterly airflow slowly builds over the South Island during today while a ridge of high pressure lies further north. A northwesterly airflow lies over most of New Zealand on Friday, strengthening overnight. The upper North Island has a ridge of high pressure.

Cloudy periods for areas north of Auckland today, mostly sunny elsewhere for the North Island however expect some high cloud. There may also be a shower about the likes of Mahia Peninsula and coastal Gisborne. Cloudy for the west of the South Island, the odd light shower about, late rain for Fiordland becoming heavy overnight. High cloud in the east, a few spots of rain possible for Southland and Otago otherwise mainly dry.

A mostly sunny day for the upper North Island on Friday, a chance of morning fog for inland areas. The lower North Island has good weather also however from afternoon some cloud moves in Taranaki southwards and brings the low risk of a shower. Rain is heavy at times for South Westland during the day, this then pushes northwards overnight. High cloud in the east with the odd spot of rain possible.

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz