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Karuizawa 7-Day Snow Forecast - 2nd August 2026

Karuizawa Snow Forecast - 7 day

ECMWF IFS
GFS
JMA

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Updated 01 August 2026 21:49 UTC

7-Day Snow Forecast for Karuizawa

1-week from 2 August.

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 28℃ 83°F
Min 14℃ 58°F

Snow unlikely

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 28℃ 83°F
Min 21℃ 69°F

Valley temperatures from an overnight low of 21℃ 69°F to daytime highs around 28℃ 83°F

Temperature at BaseTemp at Base

Sun
02

Snow unlikely

ShwrsShwrsLt DrizzleLt Drizzle

Rain showers early, then light drizzle later.

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

Max 20℃ 68°F
Min 16℃ 61°F

Valley temperatures from an overnight low of 16℃ 61°F to daytime highs around 20℃ 68°F

Temperature at BaseTemp at Base

Mon
03

Snow unlikely

Lt DrizzleCloudCloudMixed

Light drizzle, cloudy, clear spells later.

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

Max 22℃ 72°F
Min 15℃ 58°F

Valley temperatures from an overnight low of 15℃ 58°F to daytime highs around 22℃ 72°F

Temperature at BaseTemp at Base

Tue
04

Snow unlikely

ClearClearMixedClear

Clear sky, clear spells, clear sky later.

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

Max 26℃ 79°F
Min 14℃ 58°F

Valley temperatures from an overnight low of 14℃ 58°F to daytime highs around 26℃ 79°F

Temperature at BaseTemp at Base

Wed
05

Snow unlikely

ClearLt DrizzleLt DrizzleLt Drizzle

Clear sky early, then light drizzle later.

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

Max 22℃ 72°F
Min 18℃ 65°F

Valley temperatures from an overnight low of 18℃ 65°F to daytime highs around 22℃ 72°F

Temperature at BaseTemp at Base

Thu
06

Snow unlikely

Lt DrizzleDrizzleDrizzleDrizzle

Light drizzle early, then drizzle later.

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

Max 22℃ 71°F
Min 19℃ 66°F

Valley temperatures from an overnight low of 19℃ 66°F to daytime highs around 22℃ 71°F

Temperature at BaseTemp at Base

Fri
07

Snow unlikely

Lt DrizzleLt DrizzleLt DrizzleDrizzle

Light drizzle early, then drizzle later.

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

Max 22℃ 72°F
Min 19℃ 65°F

Valley temperatures from an overnight low of 19℃ 65°F to daytime highs around 22℃ 72°F

Temperature at BaseTemp at Base

Sat
08

Snow unlikely

Lt DrizzleLt DrizzleLt DrizzleLt Drizzle

Light drizzle.

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 21:49 UTC, next update expected imminently.

Snow Reliability

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.