Fog in Christchurch has cleared and arriving flights are now landing in the city.
Fifteen arrivals had been cancelled by 9.30am according to Christchurch Airport flight information.
A Christchurch Airport spokeswoman says the first arrivals of the morning have just landed
She says there may be delays as airlines reposition aircraft and re-schedule flights.
"We suggest anyone booked on or to meet a flight today contacts the airline."
Jacinda Ardern's flight to Christchurch to attend a counter-terrorism hui was also cancelled.
A spokeswoman for the airport said departures are not affected but arrivals are.
They said the airport is still open but those travelling should check their flight status with the airline.
The garden city was sitting on 6.5C at 7am this morning, with temperatures not dropping below 7C overnight on Monday.
A Christchurch Travel Information Team spokesperson said the fog should clear later from a fairly warm afternoon.
It suggests motorists turn on their headlights, not parking lights, and adjust their speed to have clear visibility of the road at all times.
They should also keep a generous following distance between them and the car in front.
MetService is predicting temperatures will reach 17C in Christchurch on Tuesday,
It is forecasting low cloud and possible drizzle from late evening with a light southwesterly.
MetService predicts rain every day this week.
Temperatures are expected to reach 13C on Wednesday, 11C on Thursday and 10C on Friday.
Hawke's Bay hosts Christmas lunches for those seeking company and support.