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Karuizawa 7-Day Snow Forecast - 31st October 2026

Karuizawa Snow Forecast - 7 day

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JMA

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Updated 31 October 2026 11:41 CDT

7-Day Snow Forecast for Karuizawa

1-week from 31 October.

For Forecast detail, see below.

Karuizawa 7-Day Snow Forecast Highlights

When will there be fresh snow in Karuizawa?

Karuizawa Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (1,048m)
Next Snow?
There is no snow currently in the forecast for Karuizawa.

7-Day Snow Outlook for Karuizawa

 
Snowfall

 
Snow Line

Max 20℃
Min 4℃

Snow unlikely

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Karuizawa 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 15℃
Min 8℃

Valley temperatures from an overnight low of 8℃ to daytime highs around 15℃

Temperature at BaseTemp at Base

Sat
31

Snow unlikely

ClearClearClearClear

Clear sky.

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

Max 14℃
Min 5℃

Valley temperatures from an overnight low of 5℃ to daytime highs around 14℃

Temperature at BaseTemp at Base

Sun
01

Snow unlikely

FairFairFairFair

Fair.

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

Max 13℃
Min 8℃

Valley temperatures from an overnight low of 8℃ to daytime highs around 13℃

Temperature at BaseTemp at Base

Mon
02

Snow unlikely

ShwrsLt DrizzleClearClear

Rain showers, light drizzle, clear sky later.

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

Max 15℃
Min 5℃

Valley temperatures from an overnight low of 5℃ to daytime highs around 15℃

Temperature at BaseTemp at Base

Tue
03

Snow unlikely

ClearFairCloudFair

Clear sky first, fair then cloudy, fair later.

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

Max 13℃
Min 4℃

Valley temperatures from an overnight low of 4℃ to daytime highs around 13℃

Temperature at BaseTemp at Base

Wed
04

Snow unlikely

ClearLt DrizzleLt DrizzleLt Rain

Clear sky, light drizzle, light rain later.

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

Max 13℃
Min 6℃

Valley temperatures from an overnight low of 6℃ to daytime highs around 13℃

Temperature at BaseTemp at Base

Thu
05

Snow unlikely

Hvy DrizzleLt DrizzleLt RainFair

Heavy drizzle first, light drizzle then light rain showers, fair later.

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

Max 20℃
Min 8℃

Valley temperatures from an overnight low of 8℃ to daytime highs around 20℃

Temperature at BaseTemp at Base

Fri
06

Snow unlikely

ClearFairFairCloud

Clear sky, fair, cloudy later.

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

No significant snowfall is forecast for this period.

This Snow Forecast for Karuizawa, 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 Karuizawa, on any given piste 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.

Karuizawa Snow Forecast updated at 11:41 CDT, next update expected imminently.

How reliable is the snow in Karuizawa?

Karuizawa typically enjoys reliable snow conditions with an average snow depth of 100 cm during peak season. For the latest snow information, including current conditions and snowfall, check J2Ski for updates.