MetService meteorologist Tui McInnes said though isolated showers were forecast for Northland leading into the New Year, it was unlikely given the balmy weather as a result of a high pressure system.
Isolated showers, if they fell, will be mostly in inland areas which excludes bigger town centres such as Whangārei, Dargaville and Kaitaia.
"It's definitely a good week for people to go and enjoy the lovely beaches in Northland. Clouds will keep temperatures down a bit but daytime temps will still hover around the mid 20s," McInnes said.
Daytime temperatures in Whangārei, Kaitaia, Kerikeri and Paihia until the end of next week will be between 24C and 27C, dropping down to 15C overnight with little or light winds.
Dargaville won't be as warm as Whangārei, with temperatures in the early 20s.
Holidaymakers are still heading north from Auckland and are facing massive delays with bumper-to-bumper traffic crawling at snail's pace at times yesterday with more heavy traffic expected to head north today.
The NZ Transport Agency said it was taking motorists nearly two hours to travel from central Auckland to Wellsford along State Highway 1 yesterday morning, nearly an hour longer than usual.
Campgrounds and other New Year hot spots around Northland are already swarming with thousands of holidaymakers, both locals and overseas travellers.
While most have already arrived in time for the New Year, the rest are expected over the weekend including those doing day trips or for the weekend only from Auckland.