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Niseko Grand Hirafu 7-Day Snow Forecast - 20th September 2026

Niseko Grand Hirafu Snow Forecast - 7 day

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Updated 20 September 2026 14:51 PDT

7-Day Snow Forecast for Niseko Grand Hirafu

1-week from 20 September.

For Forecast detail, see below.

Niseko Grand Hirafu 7-Day 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 (2,638ft)
Next Snow?
There is no snow currently in the forecast for Niseko Grand Hirafu.

7-Day Snow Outlook for Niseko Grand Hirafu

 
Snowfall

 
Snow Line

Max 76°F
Min 50°F

Snow unlikely

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Niseko Grand Hirafu Medium-Range (7-Day) Snow Forecast Detail

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.

Max 72°F
Min 61°F

Valley temperatures from an overnight low of 61°F to daytime highs around 72°F

Temperature at BaseTemp at Base

Sun
20

Snow unlikely

FairFairCloudFair

Fair, cloudy, fair later.

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

Max 76°F
Min 59°F

Valley temperatures from an overnight low of 59°F to daytime highs around 76°F

Temperature at BaseTemp at Base

Mon
21

Snow unlikely

ClearClearClearFair

Clear sky early, then fair later.

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

Max 66°F
Min 56°F

Valley temperatures from an overnight low of 56°F to daytime highs around 66°F

Temperature at BaseTemp at Base

Tue
22

Snow unlikely

ClearClearClearClear

Clear sky.

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

Max 70°F
Min 51°F

Valley temperatures from an overnight low of 51°F to daytime highs around 70°F

Temperature at BaseTemp at Base

Wed
23

Snow unlikely

ClearFairClearDrizzle

Clear sky first, fair then clear sky, drizzle later.

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

Max 62°F
Min 53°F

Valley temperatures from an overnight low of 53°F to daytime highs around 62°F

Temperature at BaseTemp at Base

Thu
24

Snow unlikely

Lt DrizzleClearClearLt Drizzle

Light drizzle, clear sky, light drizzle later.

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

Max 63°F
Min 51°F

Valley temperatures from an overnight low of 51°F to daytime highs around 63°F

Temperature at BaseTemp at Base

Fri
25

Snow unlikely

ClearClearLt DrizzleFair

Clear sky, light drizzle, fair later.

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

Max 66°F
Min 50°F

Valley temperatures from an overnight low of 50°F to daytime highs around 66°F

Temperature at BaseTemp at Base

Sat
26

Snow unlikely

ClearFairLt DrizzleCloud

Clear sky first, fair then light drizzle, cloudy later.

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

No significant snowfall is forecast for this period.

This Snow Forecast for Niseko Grand Hirafu, 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 Grand Hirafu, 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 Grand Hirafu Snow Forecast updated at 14:51 PDT, next update expected 17:00 PDT.

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.