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Asahidake Onsen Snow Forecast - 21st March 2026

Asahidake Onsen Snow Report and Forecast

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JMA

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Updated 21 March 2026 03:42 PDT

Snow Forecast for Asahidake Onsen

Snow and Weather from 21 March.

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 (1,312ft)
Next Snow?
There is no snow currently in the forecast for Asahidake Onsen.

Forecast for today in Asahidake Onsen

Max 59°F
Min 46°F

Valley temperatures from an overnight low of 46°F to daytime highs around 59°F

Temperature at BaseTemp at Base

Sat
21

Snow unlikely

ClearClearClearMixed

Clear sky early, then clear spells later.

Forecast times for Asahidake Onsen are in Tokyo (Asia/Tokyo) time zone.

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Asahidake Onsen 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Asahidake Onsen from OpenMeteo(JMA)
Sat
21
Sun
22
Mon
23
Tue
24
Wed
25
Thu
26
Fri
27
WindNE F3
2,165ft
53°F
Clear
54°F
Mixed
58°F
Fair
52°F
Fair
51°F
Drizzle
55°F
Lt Drizzle
57°F
Lt Drizzle
NE F3
1,312ft
56°F
Clear
57°F
Mixed
61°F
Fair
55°F
Fair
54°F
Drizzle
58°F
Lt Drizzle
60°F
Lt Drizzle
NE F3
459ft
59°F
Clear
60°F
Mixed
64°F
Fair
58°F
Fair
57°F
Drizzle
61°F
Lt Drizzle
63°F
Lt Drizzle
Snow Line
Max Town59°F60°F64°F58°F57°F61°F63°F
Min Town46°F46°F51°F49°F50°F54°F54°F

This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.

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.

Understanding and predicting Snow Conditions in Asahidake Onsen

Here are our tips for making the most of a trip to Asahidake Onsen, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Asahidake Onsen, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.

Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:

Pistes (Groomers) or Off-Piste

These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.

  • Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
  • Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.

WARNING - skiing off-piste (out-of-bounds) at Asahidake Onsen is uncontrolled and un-marked slopes are not made safe (from avalanche risk) or patrolled. Always check local advice, know the Avalanche Risk Level, ski with safety kit (and know how to use it), and never ski alone.

Analyzing Weather and Snowfall Forecasts

Whilst no forecast can tell you exactly how snow conditions in Asahidake Onsen will develop, checking the forecast regularly should give you an idea of what to expect.

New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.

Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.

Predicting Future Snow Quality

Regularly check our snow and weather forecasts for Asahidake Onsen for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.

Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.