Christmas Day will be fine almost everywhere, with just a few showers expected in the east of the North Island and the deep south of the South Island, MetService forecaster Sonja Farmer said.
"It's a nice present in itself, the fact that we've got no significant weather coming."
It would be warm in some areas - Te Kūiti was expected to reach highs of 28C tomorrow and Tuesday, while Hamilton would have a pair of 26C highs. Tauranga would top 25C both days.
The settled, mild pattern was expected to continue on Christmas Day, Farmer said.
The east of the North Island around Gisborne and the deep south of the South Island would receive a few showers, but everywhere else should be fine.
"They'll get some showers, but the overall theme [for the country] is fine. There's nothing untoward on the horizon."
SETTLED LEAD UP TO CHRISTMAS.
Yesterday's southerly change has cleared skies across much of Aotearoa, but a few showers...
Hot spots would include Thames, Paeroa, Waihī and Kerikeri, all sizzling with highs of 25C.
Aucklanders could expect a mild 22C, but it will be cooler in other main centres, with Wellington on 19C, Christchurch 17C and Dunedin 15C.
Across the Tasman, where scorching temperatures keep breaking records - the 40.9C average maximum across Australia on Tuesday was the country's hottest on record - perfect conditions are also expected for the much-anticipated Boxing Day test.
A high of 22C is expected in Melbourne on Boxing Day, with partly cloudy conditions and 20km/h to 30km/h southerlies, according to the Bureau of Meteorology.
Day two of the test is also forecast to be partly cloudy, with the mercury rising to 26C.