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Niseko Grand Hirafu Snow Forecast - 6th September 2026

Niseko Grand Hirafu Snow Report and Forecast

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Updated 06 September 2026 03:12 IST

Snow Forecast for Niseko Grand Hirafu

Snow and Weather from 6 September.

For Forecast detail, see below.

Niseko Grand Hirafu Snow Forecast Highlights

When will there be fresh snow in Niseko Grand Hirafu?

Niseko Grand Hirafu Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (804m)
Next Snow?
There is no snow currently in the forecast for Niseko Grand Hirafu.

Forecast for today in Niseko Grand Hirafu

Max 24℃
Min 14℃

Valley temperatures from an overnight low of 14℃ to daytime highs around 24℃

Temperature at BaseTemp at Base

Sun
06

Snow unlikely

ClearClearCloudCloud

Clear sky early, then cloudy later.

Forecast times for Niseko Grand Hirafu are in Tokyo (Asia/Tokyo) time zone.

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Niseko Grand Hirafu 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Niseko Grand Hirafu from OpenMeteo(JMA)
Sun
06
Mon
07
Tue
08
Wed
09
Thu
10
Fri
11
Sat
12
Wind
1,308m
18℃
Clear
14℃
Cloud
16℃
Clear
11℃
Mixed
13℃
Fair
14℃
Fair
15℃
Clear
804m
21℃
Clear
17℃
Cloud
20℃
Clear
15℃
Mixed
16℃
Fair
17℃
Fair
18℃
Clear
300m
24℃
Clear
20℃
Cloud
23℃
Clear
18℃
Mixed
20℃
Fair
21℃
Fair
21℃
Clear
Snow Line
Max Town24℃20℃23℃18℃20℃21℃21℃
Min Town14℃14℃16℃13℃12℃14℃15℃

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 Reliability

Niseko Grand Hirafu enjoys exceptional snow reliability, with an average snowfall of over 15 meters each season. Snow depths typically range from 1 to 3 meters, encouraging skiers to check J2Ski for the latest snow reports.

Understanding and predicting Snow Conditions in Niseko Grand Hirafu

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