While a large, rain-bearing low pressure system starts to ominously gather across the Tasman, New Zealand sits under a ridge of high pressure as Wednesday begins.

There’s a mix of sun and cloud around for much of the North Island, while there may be areas of fog in the morning and again overnight – especially about inland areas.
High cloud thickens from afternoon over the North Island, moving in from the west.

For the upper South Island, any morning cloud breaks to a mostly sunny day, while some high cloud gathers from afternoon or evening, and winds are mainly light.
Southland sees afternoon showers with a southwest change, though, and a few showers may make it into Otago in the evening.
Rain moves into Fiordland in the morning, while there’s a chance of a shower further north along the West Coast late afternoon and into the evening.

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