Niseko Kokusai Moiwa 7-Day Snow Forecast

Niseko Kokusai Moiwa Long-Range Snow Forecast Updated today

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Updated 21 September 2026 04:50 AEST

Long-Range Snow Forecast for Niseko Kokusai Moiwa

Long-range (14 to 45 days) from 20 September.

For Forecast detail, see below.

Niseko Kokusai Moiwa Snow Forecast Highlights

When will there be fresh snow in Niseko Kokusai Moiwa?

Niseko Kokusai Moiwa Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (565m)
Next Snow?
There is no snow currently in the forecast for Niseko Kokusai Moiwa.

Long-range Snow Outlook for Niseko Kokusai Moiwa

Snowfall

Snow Line

Max 25℃
Min 9℃

Snow unlikely

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Niseko Kokusai Moiwa 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 Niseko Kokusai Moiwa from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Sun 20	Fair.	Max 23℃ Min 15℃
Mon 21	Clear sky.	Max 25℃ Min 15℃
Tue 22	Clear sky.	Max 19℃ Min 12℃
Wed 23	Clear sky.	Max 21℃ Min 9℃
Thu 24	Light drizzle.	Max 18℃ Min 12℃
Fri 25	Clear sky.	Max 17℃ Min 10℃
Sat 26	Clear spells.	Max 19℃ Min 9℃

No significant snowfall is forecast for this period.

This Snow Forecast for Niseko Kokusai Moiwa, Japan 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 Niseko Kokusai Moiwa, 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.

Niseko Kokusai Moiwa Snow Forecast updated at 04:50 AEST, next update expected 10:00 AEST.

Ensemble forecast for Niseko Kokusai Moiwa, Japan at 330m

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

Niseko Kokusai Moiwa enjoys a reliable snow season, with snow depths often reaching over 3 meters by mid-winter. For the latest snow conditions and updates, check J2Ski for accurate and timely information.

Off-Piste Safety in Niseko Kokusai Moiwa

Before skiing or snowboarding off-piste in Niseko Kokusai Moiwa, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.