A high pressure system is starting to move into New Zealand from the Tasman Sea however a southerly quarter airflow up the eastern side of the country brings cloud and a few showers.

Northland, Auckland, Waikato & Bay Of Plenty
Mostly sunny, some morning cloud then again later in the day. Southwesterly winds, fresh for a time in the afternoon.
Highs: 19-22

Western North Island (including Central North Island)
A mix of sun and cloud, Taranaki becomes mainly sunny from midday. Westerlies change to the southeast late afternoon or evening.
Highs: 14-19

Eastern North Island
Sunny, cloud develops late morning for Wairarapa then late afternoon further north as southeasterlies freshen. A few showers or drizzle patches eventually spread northwards too.
Highs: 19-23

Wellington
Mostly sunny then some cloud from late morning as southeasterlies develop.
Highs: 17-20

Marlborough & Nelson
Sunny for Nelson with southwesterlies then afternoon northeriles. Cloud thickens for Marlborough from morning with southeasterly winds.
Highs: 17-20

Canterbury
Thickening cloud with the odd shower or drizzle patch, some areas could see morning sun before cloud increases. East to northeasterly winds.
Highs: 15-19

West Coast
A few morning showers then sunny spells increase from afternoon, southwesterly winds.
Highs: 15-18

Southland & Otago
A few showers for Southland, clearing around midday then sunny areas break through. Otago is mostly sunny, some afternoon cloud especially in the east. Westerlies (gusty about the coast) tend southwest in the afternoon.
Highs: 12-20