A northwesterly airflow develops over the South Island today then changing cooler southwest about the lower South Island this afternoon, reaching the lower North Island overnight. A high moves over the country on Thursday then hangs around for much of Friday while a low brews in the Tasman Sea.

Wednesday

Purple – Northwesterly winds strengthen about the inner South Island from this morning then in the afternoon winds change gusty southwest, winds strong about coastal areas then pushing northwards in the evening.

Westerlies brisk about coastal parts of the lower western North Island during the day.

Yellow – Temperatures may approach the mid 20’s in the afternoon about Hawkes Bay (mainly inland) and Gisborne.

Thursday

Blue – Potentially a frosty start about the lower South Island in the morning (inland), only the risk of a light frost however this may be of concern to growers.

In the afternoon / evening there may be a few heavy isolated showers about the Waikato / Bay Of Plenty then easing later.

Friday

Still the chance of a light frost again on Friday morning, only just, for inner parts of the South Island. Low risk of a heavy isolated shower about some upper North Island areas in the afternoon.

– Please note, the idea behind this update is to focus on the main weather highlights, which is why not all regions are mentioned. 

For specific 10 day information for your city, town, rural community or island please see the 1500 forecasts on our homepage!

– Aaron Wilkinson, WeatherWatch.co.nz