New Zealand temperatures to increase in late July

July is set to get a lot warmer, so you can finally say goodbye to those freezing cold starts. 

Temperatures during the day in a number of centres across the North Island will reach 17 to 19 degrees this week, particularly in the east and north, WeatherWatch reports. 

Meanwhile, the South Island will get "mild air" with a "lack of frosts". The regions of Otago and Southland might still get some frosts, but it will be mild. 

Overnight lows will be above freezing all this week across the North Island's central plateau. Even Queenstown's overnight low this Friday will be a mild seven degrees. 

The warmer weather is due to westerly winds coming from Australia. 

And just when you thought it couldn't get any better, WeatherWatch says there are no significant nationwide or regional polar southerlies in the forecast for the coming week or so.

By this weekend, the warm weather will increase, as a cold front moves northwards encouraging sub-tropical winds over parts of New Zealand. 

It's not 100 percent locked in, but the general trend does seem to suggest milder than usual air flows for New Zealand, says WeatherWatch.