Sunday will be a fairly calm and mild day across most regions of New Zealand ahead of a southerly change which will reach Southland later today but kicks in properly on Monday, Tuesday and Wednesday.

NORTH ISLAND:
High pressure dominates with a mix of sun and cloud for many regions and light variable winds. In Wellington nor’westers will build across the day. Sunniest weather will be in eastern regions whereas the west may see a few light showers here and there – otherwise a mainly dry day.
Highs: 18 to 23

SOUTH ISLAND:
Mainly settled with light winds from the north or west gradually picking up. Cloudy areas increasing from the west and south. Dry for most but heavy rain moves into Fiordland today and then up the West Coast into the afternoon and evening – weakening as it does so. Colder in Southland and Otago later with patchy rain or showers and a south west change.
Highs: 13 to 21 (coldest in the southern half, warmest in the north east)

– WeatherWatch.co.nz