Karuizawa Snow Forecast - 7 day
Updated 01 September 2026 02:44 PDT
7-Day Snow Forecast for Karuizawa
1-week from 1 September.
For Forecast detail, see below.
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Karuizawa 7-Day Snow Forecast Highlights
When will there be fresh snow in Karuizawa?
| Next Snow? | |
|---|---|
| There is no snow currently in the forecast for Karuizawa. |
7-Day Snow Outlook for Karuizawa
Snowfall
Snow Line
Max 78°F
Min 55°F
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 70°F
Min 64°F
Valley temperatures from an overnight low of 64°F to daytime highs around 70°F
Temperature at BaseTemp at Base
Tue
01
Snow unlikely
Cloudy first, clear spells then light drizzle, cloudy later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 78°F
Min 66°F
Valley temperatures from an overnight low of 66°F to daytime highs around 78°F
Temperature at BaseTemp at Base
Wed
02
Snow unlikely
Fair, drizzle, clear spells later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 71°F
Min 62°F
Valley temperatures from an overnight low of 62°F to daytime highs around 71°F
Temperature at BaseTemp at Base
Thu
03
Snow unlikely
Light drizzle first, light rain then rain, light drizzle later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 64°F
Min 55°F
Valley temperatures from an overnight low of 55°F to daytime highs around 64°F
Temperature at BaseTemp at Base
Fri
04
Snow unlikely
Drizzle, rain, light rain later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 60°F
Min 55°F
Valley temperatures from an overnight low of 55°F to daytime highs around 60°F
Temperature at BaseTemp at Base
Sat
05
Snow unlikely
Heavy drizzle, drizzle, light rain later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 66°F
Min 58°F
Valley temperatures from an overnight low of 58°F to daytime highs around 66°F
Temperature at BaseTemp at Base
Sun
06
Snow unlikely
Heavy drizzle, drizzle, light drizzle later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 75°F
Min 66°F
Valley temperatures from an overnight low of 66°F to daytime highs around 75°F
Temperature at BaseTemp at Base
Mon
07
Snow unlikely
Cloudy early, then light drizzle 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 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.
Karuizawa Snow Forecast updated at 02:44 PDT, next update expected 05:00 PDT.
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.