Karuizawa 48-Hour Snow Forecast
Updated 21 September 2026 15:17 IST
2-Day Forecast for Karuizawa
48-hours from 21 September.
See below for forecast detail
Karuizawa Snow Forecast updated at 15:17 IST, next update expected imminently.
Forecast for today in Karuizawa
Max 22℃
Min 19℃
Valley temperatures from an overnight low of 19℃ to daytime highs around 22℃
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.
Forecast for tomorrow in Karuizawa
Max 23℃
Min 14℃
Valley temperatures from an overnight low of 14℃ to daytime highs around 23℃
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.
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48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Mon | 09:00 |  | Heavy drizzle. | 19℃ | SE Light | -125% | |
| Mon | 10:00 |  | Cloudy. | 20℃ | SE Light | -125% | |
| Mon | 11:00 |  | Light rain. | 20℃ | SE Light | -125% | |
| Mon | 12:00 |  | Drizzle. | 20℃ | SE Light | -125% | |
| Mon | 13:00 | | Cloudy. | 21℃ | SE Light | -125% | |
| Mon | 14:00 | | Clear spells. | 22℃ | SE Light | -125% | |
| Mon | 15:00 | | Light drizzle. | 22℃ | SE Light | -125% | |
| Mon | 16:00 | | Drizzle. | 21℃ | SE Light | -125% | |
| Mon | 17:00 | | Light rain. | 20℃ | SE Light | -125% | |
| Mon | 18:00 | | Cloudy. | 20℃ | SE Light | -125% | |
| Mon | 19:00 | | Clear spells. | 20℃ | SE Light | -125% | |
| Mon | 20:00 | | Cloudy. | 20℃ | SE Light | -125% | |
| Mon | 21:00 | | Cloudy. | 20℃ | SE Light | -125% | |
| Mon | 22:00 | | Clear spells. | 20℃ | SE Light | -125% | |
| Mon | 23:00 | | Clear spells. | 20℃ | SE Light | -125% | |
| Tue | 00:00 | | Cloudy. | 20℃ | NW Light | -125% | |
| Tue | 01:00 | | Clear spells. | 20℃ | NW Light | -125% | |
| Tue | 02:00 | | Fair. | 20℃ | NW Light | -125% | |
| Tue | 03:00 | | Fair. | 19℃ | NW Light | -125% | |
| Tue | 04:00 | | Fair. | 19℃ | NW Light | -125% | |
| Tue | 05:00 | | Fair. | 19℃ | NW Light | -125% | |
| Tue | 06:00 | | Fair. | 18℃ | NW Light | -125% | |
| Tue | 07:00 | | Clear sky. | 18℃ | NW Light | -125% | |
| Tue | 08:00 | | Clear sky. | 19℃ | NW Light | -125% | |
| Tue | 09:00 | | Clear sky. | 20℃ | NW Light | -125% | |
| Tue | 10:00 | | Clear sky. | 21℃ | NW Light | -125% | |
| Tue | 11:00 | | Clear sky. | 22℃ | NW Light | -125% | |
| Tue | 12:00 | | Clear sky. | 23℃ | NW Light | -125% | |
| Tue | 13:00 | | Clear sky. | 23℃ | NW Light | -125% | |
| Tue | 14:00 | | Clear sky. | 23℃ | NW Light | -125% | |
| Tue | 15:00 | | Clear sky. | 23℃ | NW Light | -125% | |
| Tue | 16:00 | | Clear sky. | 22℃ | NW Light | -125% | |
| Tue | 17:00 | | Clear sky. | 20℃ | NW Light | -125% | |
| Tue | 18:00 | | Clear sky. | 18℃ | NW Light | -125% | |
| Tue | 19:00 | | Clear sky. | 17℃ | NW Light | -125% | |
| Tue | 20:00 | | Clear sky. | 16℃ | NW Light | -125% | |
| Tue | 21:00 | | Clear sky. | 15℃ | NW Light | -125% | |
| Tue | 22:00 | | Clear sky. | 14℃ | NW Light | -125% | |
| Tue | 23:00 | | Fair. | 14℃ | NW Light | -125% | |
| Wed | 00:00 | | Clear sky. | 14℃ | SE Light | -125% | |
| Wed | 01:00 | | Clear sky. | 14℃ | SE Light | -125% | |
| Wed | 02:00 | | Clear sky. | 14℃ | SE Light | -125% | |
| Wed | 03:00 | | Clear sky. | 14℃ | SE Light | -125% | |
| Wed | 04:00 | | Fair. | 14℃ | SE Light | -125% | |
| Wed | 05:00 | | Fair. | 14℃ | SE Light | -125% | |
| Wed | 06:00 | | Fair. | 14℃ | SE Light | -125% | |
| Wed | 07:00 | | Fair. | 15℃ | SE Light | -125% | |
| Wed | 08:00 | | Fair. | 16℃ | SE Light | -125% | |
Snow Forecast near Karuizawa
Snow forecasts for nearby ski areas.
Snow Forecasts for other Ski Resorts near Karuizawa are not available.
Karuizawa Snow
For current snow depths and skiing conditions, see our Current Snow Report for Karuizawa.
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.
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.