A large low pressure system in the Tasman Sea draws in an easterly quarter airflow over New Zealand today. A slow moving occluded front over the North Island brings rain, mainly dry for the South Island.

Northland, Auckland, Waikato & Bay Of Plenty
Morning rain may be heavy then easing, chance of an isolated heavy thundery shower in the afternoon for Northland. Fresh easterlies, strong about eastern coastal areas then gradually easing from afternoon.
Highs: 13-18

Western North Island (including Central North Island)
Cloudy, rain about Taranaki ease from afternoon. Elsewhere expect scattered rain from midday, easing evening. Southeasterly winds, gusty about coastal areas (strong about southern coastal Tarnaki).
Highs: 8-13

Eastern North Island
Cloudy with drizzle, turning to rain around midday for Hawkes Bay / Gisborne. Heavy rain about Gisborne by evening. Easterly winds.
Highs: 10-13

Wellington
Cloudy, breezy southeasterly winds.
High: 11

Marlborough & Nelson
Cloudy for Marlborough. Nelson has high cloud, this thickens and lowers from afternoon. Drizzle later in the day for Marlborough. Southeasterly winds.
Highs: 9-11

Canterbury
Mostly cloudy, skies a bit clearer about some inland spots (i.e. Mackenzie Country). East to northeasterly winds.
Highs: 5-9

West Coast
Sunny areas and some high cloud, southeasterly winds.
Highs: 10-12

Southland & Otago
Cloudy areas and occasional sunny spells, light east to southeasterly winds.
Highs: 4-9

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz