While summer still has another two to five weeks remaining (depending on when you consider summer officially ends) the overnight lows are going to start sliding downhill from now on predicts WeatherWatch.co.nz.

The weather news authority says the sun is now rising an hour later on average across the country compared to the longest week of the year the week before Christmas.

In Auckland the sun has gone from rising at 5:58am back on December 22nd to 6:51am today. 

At the other end of the country in Invercargill the sunrise time has gone from 5:50am to 7am. 

in Auckland the length of daylight has shrunk from 14 hours and 41 minutes on the longest day to 13 hours and 27 minutes while in Invercargill it has shrunk from 15 hours and 49 minutes to 14 hours and 1 minute.

Christchurch and Wellington are roughly half way between the Invercargill and Auckland times.

WeatherWatch.co.nz says while parts of New Zealand will still see highs into the late 20s and early 30s well into March this year the longer nights mean less heating and therefore cooler mornings.

– WeatherWatch.co.nz

– Image / file, sunset in Auckland, Chris Gin