Mount Olympus (NZ) 7-Day Snow Forecast

Mount Olympus (NZ) Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 01 September 2026 12:44 NZST

Long-Range Snow Forecast for Mount Olympus (NZ)

Long-range (14 to 45 days) from 1 September.

For Forecast detail, see below.

Mount Olympus (NZ) Snow Forecast Highlights

When will there be fresh snow in Mount Olympus (NZ)?

Mount Olympus (NZ) Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,655m)
Next Snow Expected	1 September
Next Snow Amount	1cm
Next 48 Hours	1cm
Next 7 Days	9cm

Long-range Snow Outlook for Mount Olympus (NZ)

Snowfall

Snow Line

Max 8℃
Min 0℃

11cm New Snow

Snow Line from 1,645m to resort level (1,430m).

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Mount Olympus (NZ) Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Mount Olympus (NZ) from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Tue 01	1cm to 2cm New Snow Light snow. Snow falling to resort level (1,430m).	Max 1℃ Min 0℃
Wed 02	Cloudy.	Max 6℃ Min 1℃
Thu 03	Light snow at altitude, light drizzle below.	Max 7℃ Min 3℃
Fri 04	1cm to 3cm New Snow Light snow. Snow Line from 1,568m to resort level (1,430m).	Max 6℃ Min 0℃
Sat 05	1cm to 2cm New Snow Light snow. Snow Line from 1,645m to resort level (1,430m).	Max 4℃ Min 0℃
Sun 06	up to 2cm New Snow Moderate/heavy snow showers at altitude, thunderstorms below. Snow Line from 1,615m to 1,492m, with rain below.	Max 6℃ Min 2℃
Mon 07	up to 1cm New Snow Clear sky. Snow Line from 1,522m to resort level (1,430m).	Max 8℃ Min 1℃

This Snow Forecast for Mount Olympus (NZ), New Zealand gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Mount Olympus (NZ), on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Mount Olympus (NZ) Snow Forecast updated at 12:44 NZST, next update expected imminently.

Ensemble forecast for Mount Olympus (NZ), New Zealand at 1,430m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Snow Reliability

Mount Olympus typically enjoys reliable snow conditions, with an average seasonal snowfall of around 300 cm. Snow depths can vary, so check J2Ski for the latest updates on snow conditions and forecasts.

Off-Piste Safety in Mount Olympus (NZ)

Before skiing or snowboarding off-piste in Mount Olympus (NZ), you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.