Asahidake Onsen 7-Day Snow Forecast

Asahidake Onsen Long-Range Snow Forecast Updated today

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Updated 13 June 2026 03:40 NZST

Long-Range Snow Forecast for Asahidake Onsen

Long-range (14 to 45 days) from 12 June.

For Forecast detail, see below.

Asahidake Onsen Snow Forecast Highlights

When will there be fresh snow in Asahidake Onsen?

Asahidake Onsen Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (400m)
Next Snow?
There is no snow currently in the forecast for Asahidake Onsen.

Long-range Snow Outlook for Asahidake Onsen

Snowfall

Snow Line

Max 26℃
Min 17℃

Snow unlikely

Asahidake Onsen 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 Asahidake Onsen from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Fri 12	Clear sky.	Max 25℃ Min 20℃
Sat 13	Clear spells.	Max 26℃ Min 17℃
Sun 14	Cloudy.	Max 26℃ Min 19℃
Mon 15	Fair.	Max 25℃ Min 19℃
Tue 16	Light drizzle.	Max 24℃ Min 19℃
Wed 17	Rain showers.	Max 25℃ Min 20℃
Thu 18	Clear spells.	Max 26℃ Min 20℃

No significant snowfall is forecast for this period.

This Snow Forecast for Asahidake Onsen, 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 Asahidake Onsen, 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.

Asahidake Onsen Snow Forecast updated at 03:40 NZST, next update expected 09:00 NZST.

Ensemble forecast for Asahidake Onsen, Japan at 140m

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.

Japan Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

Asahidake Onsen boasts impressive snow reliability, with average snow depths reaching up to 6 meters during peak season. For the latest snow conditions, check J2Ski for real-time updates and forecasts.

Off-Piste Safety in Asahidake Onsen

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