A low churns away west of New Zealand in the Tasman Sea on Tuesday, an east to northeasterly airflow gradually increases over the country during the day.

Thickening cloud across much of the North Island on Tuesday, chance of a shower or two from afternoon in the west. Rain moves into Northland by evening then pushes southwards overnight. Mostly sunny for the east coast with some high cloud.

The South Island sees cloudy skies and patchy showers / drizzle develop in the east, morning cloud may break to some sun along the West Coast. Rain moves into Nelson / Marlborough overnight.

By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz