Antarctic polar blast brings rare sea‑level snow to New Zealand
South Island communities face road and school closures, and ferry services are disrupted as freezing conditions spread.
An Antarctic polar blast swept across parts of New Zealand on August 4, 2026, bringing unusually heavy snow down to sea level on the South Island and triggering widespread disruption.
Impact and immediate disruptions
Freezing temperatures and snow led to closures of roads and highways and forced authorities to advise residents in the southern city of Dunedin to avoid all non‑essential travel because of snow and icy surfaces.
Primary and secondary schools and kindergartens in the Dunedin area — between Mosgiel, Port Chalmers and Waikouaiti — were closed, and East Otago High School in Palmerston also shut its doors as the storm moved through.
The Cook Strait, which separates the North and South Islands, saw strong winds and rough seas that disrupted ferry traffic. Interislander canceled four sailings between Wellington and Picton, while Bluebridge called off all six departures scheduled for Tuesday and two morning sailings planned for Wednesday.
Meteorological authorities issued a high‑wave warning for the Wairarapa coast, forecasting waves up to six metres by the morning of Wednesday, August 5, 2026. Forecasters also warned of hazardous driving conditions on several main roads.
Snow at sea level is uncommon in New Zealand, even on the South Island, but the archipelago is now at the peak of austral winter and the Antarctic cold pool produced conditions rare for lowland areas. Authorities warned the situation could continue to cause local interruptions while the system moves on.
Photo: EPA/MIKE BOWERS AUSTRALIA AND NEW ZEALAND OUT
