All flights in and out of Wellington Airport have been cancelled due to the wild weather hammering the region.
Wellington Airport says high winds were making it unsafe for baggage handlers to operate.
Passengers have been advised to check directly with airlines for further information.
Ferry sailings have also been cancelled and seven-metre high waves were expected on the South Coast.
Wellington Region Emergency Management is urging surfers, swimmers, fishers and small boat owners to stay away from the sea.
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