A strong northwesterly airflow lies over New Zealand on Monday, within this flow a front moves northwards over the South Island during the day reaching the lower North Island overnight.

For western parts of the North Island expect mostly cloudy skies with the odd light shower, overnight rain moves into Taranaki with heavy falls possible. Winds rise overnight becoming strong from the northwest about coastal areas. Northland has a mix of sun and cloud during the day and Auckland may catch some sun at times before clouding up later on.

The east coast has a mainly sunny day with increasing high cloud, northwesterly winds and warm afternoon temperatures reaching into the mid 20’s, perhaps even a bit higher in some spots.

Heavy rain for the South Island’s West Coast eases from the south afternoon onwards. Strong northwesterlies in the east with thick high cloud, winds may gust to gale at times about inland parts of the eastern South Island then easing from afternoon. Strong to gale northwesterlies pump through Cook Strait for much of the day.

Southland and Otago see any early spots of rain clear then mostly sunny however from midday a shower or two may move into Southland at times.

Blue – Heavy form of precipitation or cold temperatures, typically below 1 to 2 degrees celsius.
White – Snow
Purple – Strong winds.
Yellow – Temperatures around the mid 20 degree mark or over.