A northwesterly airflow lies over New Zealand today however the upper North Island experiences some ridging spreading out from a large anticyclone centred to the east.

Northland, Auckland, Waikato & Bay Of Plenty
Mostly sunny, a little cloud in the afternoon. Light winds.
Highs: 19-21

Western North Island (including Central North Island)
Cloudy areas, the odd shower at times about Taranaki and Kapiti. Northwesterly winds.
Highs: 16-17

Eastern North Island
Sunny, there may be a touch of high cloud. Light northwesterlies, breezy in the afternoon about Wairarapa.
Highs: 18-21

Wellington
Cloudy areas, sun at times. Gusty north to northwesterly winds .
High: 16

Marlborough & Nelson
Mostly sunny with some high cloud, areas of mid level cloud for Nelson at times especially towards the west. Northwesterly winds, gusty at times for Marlborough.
Highs: 18-22

Canterbury
High cloud, some sun at times. Breezy north to northwesterly winds.
Highs: 21-23

West Coast
Morning rain eases to showers, rain moves back in to Fiordland in the evening with heavy falls. Northwesterly winds.
Highs: 14-17

Southland & Otago
High cloud, morning spots of rain clear Southland. Rain moves back in in the evening and including into Central Otago. Northwesterly winds, gusty at times.
Highs: 17-21

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz