A ridge of high pressure covers most of New Zealand on Tuesday, an easterly airflow moving around this ridge pushes over the North Island during the day while a northerly airflow lies over the South Island. And finally a front affects the lower South Island.
Showers are looking a bit more likely for the upper North Island on Tuesday especially from afternoon, there is even the low risk of an isolated heavy fall or two. Calmer and sunnier conditions for the western and lower North Island.
Rain once again for South Westland with heavy falls possible, most likely about Fiordland. Drier in the east with some high cloud although some rain moves into Southland during the afternoon and perhaps reaching parts of Otago in the evening.
By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz