Karuizawa Snow Forecast - 7 day
Updated 12 August 2026 04:44 BST
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 27℃ 81°F
Min 14℃ 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 19℃ 65°F
Min 17℃ 63°F
Valley temperatures from an overnight low of 17℃ 63°F to daytime highs around 19℃ 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 21℃ 70°F
Min 18℃ 65°F
Valley temperatures from an overnight low of 18℃ 65°F to daytime highs around 21℃ 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 21℃ 69°F
Min 19℃ 66°F
Valley temperatures from an overnight low of 19℃ 66°F to daytime highs around 21℃ 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 22℃ 71°F
Min 16℃ 61°F
Valley temperatures from an overnight low of 16℃ 61°F to daytime highs around 22℃ 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 25℃ 77°F
Min 14℃ 58°F
Valley temperatures from an overnight low of 14℃ 58°F to daytime highs around 25℃ 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 27℃ 81°F
Min 17℃ 62°F
Valley temperatures from an overnight low of 17℃ 62°F to daytime highs around 27℃ 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 27℃ 81°F
Min 18℃ 64°F
Valley temperatures from an overnight low of 18℃ 64°F to daytime highs around 27℃ 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 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 04:44 BST, next update expected 07:00 BST.
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.