On Wednesday we have a frontal area which moves over the upper North Island in the morning, flicking out from a low in the Tasman Sea.

This brings fairly cloudy skies down to the Central North Island, while showers also move in for most of these regions by midday.
One or two showers could become heavy in the afternoon with the chance of a thunderstorm which clears later in the evening.
This is most likely around the Waikato, inland Bay of Plenty and northeastern parts of the CNI.

From Napier to Gisborne, cloudy areas prevail, with the odd shower later in the day, and winds blowing from the south.

In the South Island, it’s a fairly good day for Nelson and Marlborough, with light winds tending northerly or northeasterly.
Canterbury sees cloud increase from morning before the odd shower moves in later in the evening for most.
There could be an isolated shower or two about inland hills and ranges from afternoon.

A front moves onto the lower South Island in the morning, bringing showers to Southland and Otago then moving into Canterbury in the afternoon or evening.

– Aaron Wilkinson & Drew Chappell, WeatherWatch.co.nz