An anticyclone covers most of New Zealand on Wednesday, a light northwesterly airflow within this high covers the South Island.

Mostly sunny about the upper North Island with light winds, overnight fog patches possible. There is a chance of some cloud streaming into places like the Coromandel, western Bay Of Plenty and Northland bringing the risk of a light shower or two from afternoon.

Sunny with light winds about the lower western North Island, a chance of overnight fog for inland areas. Mainly sunny with light winds tending easterly in the afternoon for the east coast. Mainly sunny with freshening north to northwesterly winds in Wellington.

Sunny with light winds in the morning for Nelson / Marlborough, afternoon north to northwesterly winds. Sunny with light northwesterlies inland about Canterbury, light east to northeast winds near the coast.

Cloudy areas along the West Coast, perhaps a drizzle patch or two. A patch of sun may break through for some. Light winds. Sunny areas and increasing high cloud about Southland / Otago, chance spot of rain from evening about Southland otherwise mainly dry. Northwesterly winds inland and about Southland, light northeasterlies about coastal Otago.