On Tuesday we have a low pressure system sitting just off the West Coast of the South Island, as well as an area of high pressure sitting just off the east coast.

A frontal zone is tied into this combination, but does move northwards during the day.
This means much of the North Island can expect a westerly quarter airflow, but it will change to the south about the lower part of the island in the afternoon and evening.

It’s looking fairly cloudy for the west of the North Island – Taranaki southwards – with westerly winds, the odd shower about, and long dry spells too.
Winds gradually swing around to the south during the afternoon and into evening.

A few showers work their way up the East Coast of the North Island during the day, though it’s looking mainly sunny beforehand.
Sunny areas dominate for the Upper North Island, along with west to southwesterly winds.

Early rain clears the lower South Island, then sun breaks through.
Areas of rain occupy most of the upper South Island, but may not reach the Nelson and Marlborough areas till afternoon.

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