A west to southwesterly airflow lies over New Zealand today, expect showery conditions for most regions especially in the west.

Northland, Auckland, Waikato & Bay Of Plenty
Showers, some may be heavy in the morning about Waikato / Bay Of Plenty. Sun breaks through at times, breezy westerly winds. Overnight further heavy showers this time for Northland / Auckland.
Highs: 14-16

Western North Island (including Central North Island)
Showers, northerlies change northwest in the afternoon and sun breaks through at times. Long dry areas by evening then overnight showers move in again about coastal areas (possibly heavy).
Highs: 12-14

Eastern North Island
Morning cloud may bring a shower or spot of rain then becoming mostly sunny in the afternoon as northwesterlies change westerly.
Highs: 15-17

Wellington
Morning showers clear then expect sunny spells, overnight showers move in as northwesterlies change southerly.
Highs: 13-14

Marlborough & Nelson
Any early showers clear then expect sunny spells, a few afternoon showers spread in from the west for Nelson. Overnight showers for Marlborough as westerlies change southerly.
Highs: 12-15

Canterbury
Occasional showers with cold southwesterlies developing in the morning. Parts of South Canterbury especially inland may be mainly dry till evening.
Highs: 9-11

West Coast
Showers, light winds tend southwest in the afternoon.
Highs: 9-11

Southland & Otago
Morning rain eases to showers, there may be a few dry areas in the afternoon. Some snow on surrounding hill tops overnight. Cold southwesterlies.
Highs: 9-11

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz