Westerly breezes kick in for two thirds of New Zealand today and when morning fog clears it will help make for a mostly sunny, warmer than average day in many parts of the country.

The flip side is that cloud, rain and showers starts to move in to western regions.

NORTH ISLAND:
Morning fog, especially in the upper North Island. West to north breezes in the lower North Island, calm elsewhere. A light isolated shower possible around Kapiti/Horowhenua otherwise dry. All regions warmer than average this afternoon.
Highs: 16 to 21

SOUTH ISLAND:
Rain on the West Coast with some heavy falls. Rain mostly south of Hokitika or Greymouth, dry further north. A mix of sun and cloud for all other regions with west to north west winds, generally speaking. Mostly places warmer than average this afternoon.
Highs: 12 to 19

– WeatherWatch.co.nz