A ridge lies over the North Island on Wednesday while northwesterlies strengthen over the South Island, a front pushes onto the lower South Island in the evening then moves northwards overnight.
Northland, Auckland, Waikato & Bay Of Plenty
Mostly sunny with north to northeasterly breezes, cloud builds a little after midday for some. There may be an isolated shower late afternoon / evening about Northland and perhaps the Waikato otherwise mainly dry.
Western North Island (including Central North Island)
Mostly sunny with light winds, tending west to northwest in the afternoon.
Eastern North Island
Sunny with north to northeasterly winds.
Sunny with brisk to strong northwesterly winds.
Marlborough & Nelson
Sunny with north to northwesterly winds, gusty at times from midday. High cloud develops overnight.
Mostly sunny with some evening high cloud, north to northwesterly winds becoming a little gusty from afternoon.
A few light showers about South Westland turn to rain in the afternoon which push northwards in the evening. Heavy rain overnight. Northerly winds strengthen.
Southland & Otago
Sunny areas and thickening high cloud, some evening rain about Southland spreads northwards overnight. North to northeasterly winds becoming breezy from midday.
By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz