Karuizawa 48-Hour Snow Forecast
Updated 12 August 2026 13:44 AEST
2-Day Forecast for Karuizawa
48-hours from 12 August.
See below for forecast detail
Karuizawa Snow Forecast updated at 13:44 AEST, next update expected 16:00 AEST.
Forecast for today in Karuizawa
Max 19℃
Min 17℃
Valley temperatures from an overnight low of 17℃ to daytime highs around 19℃
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.
Forecast for tomorrow in Karuizawa
Max 21℃
Min 18℃
Valley temperatures from an overnight low of 18℃ to daytime highs around 21℃
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.
48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Wed | 09:00 | | Rain. | 17℃ | E Breeze | -125% | |
| Wed | 10:00 | | Rain. | 17℃ | E Light | -125% | |
| Wed | 11:00 | | Light rain. | 17℃ | E Light | -125% | |
| Wed | 12:00 | | Light rain. | 18℃ | E Breeze | -125% | |
| Wed | 13:00 | | Drizzle. | 18℃ | E Light | -125% | |
| Wed | 14:00 | | Light rain. | 17℃ | E Light | -125% | |
| Wed | 15:00 | | Drizzle. | 18℃ | E Light | -125% | |
| Wed | 16:00 | | Drizzle. | 18℃ | E Light | -125% | |
| Wed | 17:00 | | Drizzle. | 18℃ | E Light | -125% | |
| Wed | 18:00 | | Drizzle. | 18℃ | E Light | -125% | |
| Wed | 19:00 | | Light rain. | 18℃ | E Light | -125% | |
| Wed | 20:00 | | Light rain. | 19℃ | E Light | -125% | |
| Wed | 21:00 | | Rain. | 19℃ | E Light | -125% | |
| Wed | 22:00 | | Rain. | 19℃ | E Light | -125% | |
| Wed | 23:00 | | Rain. | 19℃ | E Light | -125% | |
| Thu | 00:00 | | Light rain. | 19℃ | E Light | -125% | |
| Thu | 01:00 | | Drizzle. | 19℃ | E Light | -125% | |
| Thu | 02:00 | | Drizzle. | 19℃ | E Light | -125% | |
| Thu | 03:00 |  | Heavy drizzle. | 19℃ | E Light | -125% | |
| Thu | 04:00 | | Drizzle. | 19℃ | E Light | -125% | |
| Thu | 05:00 | | Light drizzle. | 18℃ | E Light | -125% | |
| Thu | 06:00 |  | Fair. | 18℃ | E Calm | -125% | |
| Thu | 07:00 | | Light drizzle. | 19℃ | E Light | -125% | |
| Thu | 08:00 | | Drizzle. | 19℃ | E Light | -125% | |
| Thu | 09:00 | | Drizzle. | 20℃ | E Light | -125% | |
| Thu | 10:00 | | Light drizzle. | 20℃ | E Light | -125% | |
| Thu | 11:00 | | Drizzle. | 21℃ | E Light | -125% | |
| Thu | 12:00 | | Light rain. | 21℃ | E Light | -125% | |
| Thu | 13:00 | | Light rain. | 21℃ | E Light | -125% | |
| Thu | 14:00 | | Light rain. | 21℃ | E Light | -125% | |
| Thu | 15:00 | | Light rain. | 21℃ | E Light | -125% | |
| Thu | 16:00 | | Light rain. | 20℃ | E Light | -125% | |
| Thu | 17:00 | | Light rain. | 20℃ | E Light | -125% | |
| Thu | 18:00 | | Light rain. | 20℃ | E Light | -125% | |
| Thu | 19:00 | | Light rain. | 20℃ | E Light | -125% | |
| Thu | 20:00 | | Light rain. | 20℃ | E Light | -125% | |
| Thu | 21:00 | | Rain. | 20℃ | E Light | -125% | |
| Thu | 22:00 | | Drizzle. | 19℃ | E Light | -125% | |
| Thu | 23:00 | | Heavy drizzle. | 19℃ | E Light | -125% | |
| Fri | 00:00 | | Heavy drizzle. | 19℃ | E Light | -125% | |
| Fri | 01:00 | | Drizzle. | 19℃ | E Light | -125% | |
| Fri | 02:00 | | Drizzle. | 19℃ | E Light | -125% | |
| Fri | 03:00 | | Drizzle. | 19℃ | E Light | -125% | |
| Fri | 04:00 | | Drizzle. | 19℃ | E Light | -125% | |
| Fri | 05:00 | | Light drizzle. | 19℃ | E Light | -125% | |
| Fri | 06:00 | | Light drizzle. | 19℃ | E Light | -125% | |
| Fri | 07:00 | | Drizzle. | 20℃ | E Light | -125% | |
| Fri | 08:00 | | Light rain. | 20℃ | E 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 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.
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.