Our early New Zealand Snow Forecast 2026 outlook points toward a potentially colder and more active South Island ski season, with El Niño patterns increasing the chances of southerly storms, colder temperatures, and improved snowmaking conditions. While long-range snow forecasts are never guaranteed in New Zealand, the early weather data is starting to paint an interesting picture for winter 2026 — although we’re definitely not putting the house on it.

New Zealand Snow Forecast 2026

Our Early Outlook

South Island

↑ 70%

Potential Snow Outlook

  • Colder temperatures likely
  • Southerly storm potential
  • Improved snowmaking conditions
  • Better outlook for Southern Alps

North Island

↓ 50%

Potential Snow Outlook

  • Drier weather risk
  • Mixed snowfall potential
  • Possible warm spells
  • Snowmaking may become important

So let’s talk about the elephant in the room: El Niño

For New Zealand skiing, El Niño can sometimes be a favourable setup, especially for the South Island. Traditionally, it can bring more frequent south-westerly weather patterns, colder outbreaks, and stronger Southern Ocean storm systems. In ski terms, that can mean better snowmaking conditions, colder temperatures, and more opportunities for southerly snow events.

There is about a 65% chance for El Niño conditions to emerge over the forecast period (May - July 2026).

Niwa

Right now, the developing El Niño pattern appears likely to favour the South Island more than the North Island

The upper North Island could trend drier through winter, while the lower South Island and Southern Alps may see more regular cold southerly systems pushing through during the ski season.

If that setup develops, it could create one of those classic New Zealand winters where storms roll through, temperatures drop quickly, and large high-pressure systems follow behind to lock the cold in. For skiers and snowboarders, that’s usually the pattern you want to see – snow, bluebird days, then freezing nights helping preserve the snowpack.

Based on the current weather models and climate outlooks, the feeling is that the South Island could see a colder and more active winter than recent years. That doesn’t necessarily mean huge snowfall every week, but it may support more consistent snowmaking conditions and regular southerly top-ups across many ski areas.

Rainfall could be above or above normal for this season.
Along with more rainfall and colder temps, the South Island looks promising.

Of course, this is New Zealand. One storm can change an entire season, and one warm month can undo it just as quickly

But if the current patterns hold, the early signs are at least pointing toward a promising South Island winter for 2026.

We’d like to thank Mountainwatch and NIWA for their information. We follow both every year and find their outlooks a great reference.