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Ajigasawa 7-Day Snow Forecast - 21st September 2026

Ajigasawa Snow Forecast - 7 day

ECMWF IFS
GFS
JMA

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Updated 20 September 2026 20:41 PDT

7-Day Snow Forecast for Ajigasawa

1-week from 21 September.

For Forecast detail, see below.

Ajigasawa 7-Day Snow Forecast Highlights

When will there be fresh snow in Ajigasawa?

Ajigasawa Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (2,160ft)
Next Snow?
There is no snow currently in the forecast for Ajigasawa.

7-Day Snow Outlook for Ajigasawa

 
Snowfall

 
Snow Line

Max 69°F
Min 55°F

Snow unlikely

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Ajigasawa 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 68°F
Min 63°F

Valley temperatures from an overnight low of 63°F to daytime highs around 68°F

Temperature at BaseTemp at Base

Mon
21

Snow unlikely

MixedMixedFairClear

Clear spells, fair, clear sky later.

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

Max 69°F
Min 58°F

Valley temperatures from an overnight low of 58°F to daytime highs around 69°F

Temperature at BaseTemp at Base

Tue
22

Snow unlikely

ClearFairClearClear

Clear sky, fair, clear sky later.

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

Max 67°F
Min 55°F

Valley temperatures from an overnight low of 55°F to daytime highs around 67°F

Temperature at BaseTemp at Base

Wed
23

Snow unlikely

ClearMixedClearClear

Clear sky, clear spells, clear sky later.

Forecast times for Ajigasawa 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

Thu
24

Snow unlikely

MixedLt DrizzleMixedFair

Clear spells first, light drizzle then clear spells, fair later.

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

Max 63°F
Min 60°F

Valley temperatures from an overnight low of 60°F to daytime highs around 63°F

Temperature at BaseTemp at Base

Fri
25

Snow unlikely

ClearClearCloudFair

Clear sky, cloudy, fair later.

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

Max 67°F
Min 62°F

Valley temperatures from an overnight low of 62°F to daytime highs around 67°F

Temperature at BaseTemp at Base

Sat
26

Snow unlikely

ClearClearCloudCloud

Clear sky early, then cloudy later.

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

Max 65°F
Min 63°F

Valley temperatures from an overnight low of 63°F to daytime highs around 65°F

Temperature at BaseTemp at Base

Sun
27

Snow unlikely

CloudCloudFairLt Drizzle

Cloudy, fair, light drizzle later.

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

No significant snowfall is forecast for this period.

This Snow Forecast for Ajigasawa, 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 Ajigasawa, 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.

Ajigasawa Snow Forecast updated at 20:41 PDT, next update expected 02:00 PDT.

Snow Reliability

Ajigasawa typically enjoys reliable snow conditions, with average snow depths of around 3 to 4 meters throughout the season. For the latest snow conditions, check J2Ski for up-to-date information.