Karuizawa Snow Forecast - 7 day
Updated 21 March 2026 03:41 PDT
7-Day Snow Forecast for Karuizawa
1-week from 21 March.
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 53°F
Min 29°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 45°F
Min 31°F
Valley temperatures from an overnight low of 31°F to daytime highs around 45°F
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Sat
21
Snow unlikely
Clear sky.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 46°F
Min 29°F
Freeze-thaw conditions, with valley temperatures cooling to 29°F and rising to 46°F
Temperature at BaseTemp at Base
Sun
22
Snow unlikely
Clear spells, fair, clear sky later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 53°F
Min 38°F
Valley temperatures from an overnight low of 38°F to daytime highs around 53°F
Temperature at BaseTemp at Base
Mon
23
Snow unlikely
Clear sky, rain showers, clear sky later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 52°F
Min 32°F
Valley temperatures from an overnight low of 32°F to daytime highs around 52°F
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Tue
24
Snow unlikely
Clear sky, clear spells, cloudy later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 46°F
Min 35°F
Valley temperatures from an overnight low of 35°F to daytime highs around 46°F
Temperature at BaseTemp at Base
Wed
25
Snow unlikely
Light drizzle.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 51°F
Min 40°F
Valley temperatures from an overnight low of 40°F to daytime highs around 51°F
Temperature at BaseTemp at Base
Thu
26
Snow unlikely
Light drizzle early, then cloudy later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 49°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 49°F
Temperature at BaseTemp at Base
Fri
27
Snow unlikely
Light drizzle first, drizzle then heavy drizzle, 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 03:41 PDT, 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.