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Hachimantai Snow Forecast - 21st March 2026

Hachimantai Snow Report and Forecast

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JMA

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Updated 21 March 2026 09:42 AEDT

Snow Forecast for Hachimantai

Snow and Weather from 21 March.

For Forecast detail, see below.

Hachimantai Snow Forecast Highlights

When will there be fresh snow in Hachimantai?

Hachimantai Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (1,200m)
Next Snow Expected21 March
Next Snow Amount6cm
Next 48 Hours6cm
Next 7 Days7cm

Forecast for today in Hachimantai

Max -4℃
Min -7℃

Below freezing at all levels, with valley temperatures as low as -7℃ and not getting above -4℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sat
21

6cm New Snow

Light SnowClearFairClear

Light snow first, clear sky then fair, clear sky later.

Snow falling to resort level (950m).

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

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Hachimantai 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Hachimantai from OpenMeteo(JMA)
Sat
21
Sun
22
Mon
23
Tue
24
Wed
25
Thu
26
Fri
27
WindW F3SW F2
1,450m
-7℃
Snow
+6cm
1℃
Clear
3℃
Mixed
0℃
Clear
3℃
Fair
4℃
Snow
+1cm
6℃
Clear
W F3SW F2
1,200m
-5℃
Snow
+6cm
3℃
Clear
4℃
Mixed
2℃
Clear
5℃
Fair
6℃
Light Snow
7℃
Clear
W F3SW F2
950m
-4℃
Snow
+6cm
4℃
Clear
6℃
Mixed
4℃
Clear
6℃
Fair
7℃
Light Snow
9℃
Clear
Snow Line

950m

950m

950m

varying 1,181m
to 950m

950m

Max Town-4℃4℃6℃4℃6℃7℃9℃
Min Town-7℃-5℃0℃-4℃-4℃0℃-1℃

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.

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Snow Forecast near Hachimantai

Snow Forecasts for Ski Resorts near Hachimantai
Ski Area 48 Hr 7 DaySaSuMoTuWeThFr
Hachimantai Resort6cm 6cm
Akitaken Tazawako Kogen5cm 5cm
Amihari1cm 4cm
Shizukuishi1cm 4cm

Snow Reliability

Hachimantai enjoys reliable snow conditions, with average snow depth reaching up to 2 meters during peak season. For the latest snow information, check J2Ski regularly.

Understanding and predicting Snow Conditions in Hachimantai

Here are our tips for making the most of a trip to Hachimantai, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Hachimantai, 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 Hachimantai 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 Hachimantai 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 Hachimantai 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.