Snow is also leading some schools to close their doors due to safety concerns.
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Khandallah School is asking parents to collect children from school as soon as possible.
The school is also suggesting that families try to get home as soon as possible to relieve congestion on the roads.
Victoria University's library will close at 5pm and a first-year finance paper test has been rescheduled.
Wellington Kindergartens is asking parents not to bring children to afternoon sessions.
General Manager Amanda Coulston said staff at kindergartens in Wellington and Porirua were asking parents to pick up their children and take them home.
"It's about getting them home. They're find at Kindergarten, they're having a great time."
A decision had not yet been made on whether to open tomorrow.
Wellington Kindergartens manages 64 kindergartens from Levin to Wellington, including Petone and Eastbourne.
Ms Coulston said those north of Porirua were open as normal at this stage.
Newlands College closed at 12.30pm today, and deputy principal David Pegram said school buses had been called in early to take children home.
The school would remain open to supervise those pupils who were unable to make it home.
No decision had been made yet on whether the school would reopen tomorrow.
"We will wait to see what the weather does."
The majority of Wairarapa's pupils were also treated to a day off school as heavy drifts continue to cause dangerous driving conditions around the region.
Some schools opened in the morning but sent pupils home while others had earlier decided not to open at all.
Rural pupils were especially affected. Those from South Wairarapa attending Masterton Intermediate School were sent home early well before the school closed at 12.30pm for parent-teacher interviews, which were also cancelled, principal Frazer Mailman said
With more snow forecast tomorrow many Wairarapa schools will decide whether to open in the morning after conditions have been assessed.
However, pupils at Masterton secondary schools Wairarapa College and Rathkeale College may have counted the polar blast as a mixed blessing both schools were scheduled to be closed anyway due to a teachers' day.
- The Dominion Post
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