Karuizawa Snow Forecast - 7 day
Updated 21 September 2026 10:47 BST
7-Day Snow Forecast for Karuizawa
1-week from 21 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 23℃ 74°F
Min 13℃ 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 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
Mon
21
Snow unlikely
Cloudy first, rain showers then clear spells, clear sky later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 23℃ 74°F
Min 14℃ 58°F
Valley temperatures from an overnight low of 14℃ 58°F to daytime highs around 23℃ 74°F
Temperature at BaseTemp at Base
Tue
22
Snow unlikely
Clear sky early, then fair later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 19℃ 66°F
Min 14℃ 57°F
Valley temperatures from an overnight low of 14℃ 57°F to daytime highs around 19℃ 66°F
Temperature at BaseTemp at Base
Wed
23
Snow unlikely
Fair, clear spells, clear sky later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 23℃ 74°F
Min 14℃ 56°F
Valley temperatures from an overnight low of 14℃ 56°F to daytime highs around 23℃ 74°F
Temperature at BaseTemp at Base
Thu
24
Snow unlikely
Fair, light drizzle, fair later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 21℃ 71°F
Min 13℃ 55°F
Valley temperatures from an overnight low of 13℃ 55°F to daytime highs around 21℃ 71°F
Temperature at BaseTemp at Base
Fri
25
Snow unlikely
Fair, light drizzle, light rain later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 17℃ 63°F
Min 14℃ 57°F
Valley temperatures from an overnight low of 14℃ 57°F to daytime highs around 17℃ 63°F
Temperature at BaseTemp at Base
Sat
26
Snow unlikely
Drizzle early, then light drizzle later.
Forecast times for Karuizawa are in Tokyo (Asia/Tokyo) time zone.
Max 17℃ 63°F
Min 14℃ 56°F
Valley temperatures from an overnight low of 14℃ 56°F to daytime highs around 17℃ 63°F
Temperature at BaseTemp at Base
Sun
27
Snow unlikely
Light rain, heavy drizzle, 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 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 10:47 BST, 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.