Mount Olympus (NZ) 7-Day Snow Forecast

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

ECMWF IFS

GFS

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Updated 22 July 2026 17:44 PDT

Long-Range Snow Forecast for Mount Olympus (NZ)

Long-range (14 to 45 days) from 23 July.

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 (5,430ft)
Next Snow Expected	24 July
Next Snow Amount	1in
Next 48 Hours	2in
Next 7 Days	2in

Long-range Snow Outlook for Mount Olympus (NZ)

Snowfall

Snow Line

Max 43°F
Min 22°F

3in New Snow

Snow Line from 5,197ft to resort level (4,692ft).

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
Thu 23	Light snow at altitude, light drizzle below.	Max 39°F Min 35°F
Fri 24	up to 2in New Snow Light snow at altitude, light rain showers below. Snow Line from 5,197ft to resort level (4,692ft).	Max 39°F Min 31°F
Sat 25	up to 1in New Snow Light snow. Snow falling to resort level (4,692ft).	Max 34°F Min 23°F
Sun 26	Clear sky.	Max 36°F Min 22°F
Mon 27	Clear sky.	Max 38°F Min 22°F
Tue 28	Clear sky.	Max 43°F Min 26°F
Wed 29	Clear sky.	Max 40°F Min 26°F

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 trail 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 17:44 PDT, next update expected 23:00 PDT.

Ensemble forecast for Mount Olympus (NZ), New Zealand at 4,692ft

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.