A southwesterly airflow lies over New Zealand on Saturday, a weak front within this flow quickly moves northwards over the South Island in the morning then the North Island from afternoon. A ridge of high pressure sits over the North Island on Sunday, a westerly quarter airflow lies over the South Island.
A shower or two for the western North Island on Saturday, mainly Waikato through to Northland. Drier elsewhere however a shower or two may move into Wairarapa in the afternoon along the east coast and perhaps further north in the evening. Early morning showers clear Southland / Otago then sunny areas increase, only the chance of brief shower moving through Canterbury around midday. Mostly sunny about Nelson / Marlborough and the West Coast, Buller however sees a shower or two from afternoon.
A mostly sunny day for the North Island on Sunday, a shower or two possible for Auckland and Northland, mainly in the morning. A shower or two possible along the West Coast of the South Island, a spot or two of rain possible about Southland also. Along the east coast and up through to Nelson conditions are mainly sunny with a touch of high cloud.
By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz