Karuizawa Snow Forecast - 7 day
Updated 11 August 2026 20:44 PDT
7-Day Snow Forecast for Karuizawa
1-week from 12 August.
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 81°F
Min 58°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 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
Wed
12
Snow unlikely
Rain showers first, drizzle then rain, rain showers later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 70°F
Min 65°F
Valley temperatures from an overnight low of 65°F to daytime highs around 70°F
Temperature at BaseTemp at Base
Thu
13
Snow unlikely
Rain showers, light rain, rain showers later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 69°F
Min 66°F
Valley temperatures from an overnight low of 66°F to daytime highs around 69°F
Temperature at BaseTemp at Base
Fri
14
Snow unlikely
Rain first, rain showers then light rain, light drizzle later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 71°F
Min 61°F
Valley temperatures from an overnight low of 61°F to daytime highs around 71°F
Temperature at BaseTemp at Base
Sat
15
Snow unlikely
Light drizzle first, cloudy then clear spells, cloudy later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 77°F
Min 58°F
Valley temperatures from an overnight low of 58°F to daytime highs around 77°F
Temperature at BaseTemp at Base
Sun
16
Snow unlikely
Fair, clear sky, fair later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 81°F
Min 62°F
Valley temperatures from an overnight low of 62°F to daytime highs around 81°F
Temperature at BaseTemp at Base
Mon
17
Snow unlikely
Clear spells, fair, clear spells later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 81°F
Min 64°F
Valley temperatures from an overnight low of 64°F to daytime highs around 81°F
Temperature at BaseTemp at Base
Tue
18
Snow unlikely
Clear spells first, cloudy then clear spells, fair 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 20:44 PDT, next update expected 23:00 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.