A northerly airflow increases today with a front moving onto the lower South Island this morning, meanwhile a low sits in the Tasman Sea. This low moves closer towards New Zealand on Saturday and draws a northeasterly airflow over the North Island and a southerly airflow over the South Island. Expect plenty of unsettled weather with areas of heavy rain likely, especially for the North Island.

A northerly airflow increases today, there is a chance of morning fog for the Waikato as a ridge of high pressure hangs on first thing. Heavy rain pushes into Fiordland in the afternoon then moving around into Southland and Otago through till evening, rain about Southland and Otago won’t be overly heavy but the intensity should pick up later in the day / overnight.

Wet and unsettled for most of New Zealand on Saturday, rain for the South Island while heavy doesn’t look as intense as falls further north for Northland through to Bay Of Plenty as a front moves southwards over the upper North Island during the day. Rain about the Bay Of Plenty may become fairly torrential in the evening / overnight for a time. Watch for a chance of thunderstorms in the east also between Coromandel and eastern Northland.

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz