Biwako Valley Snow Forecast - 7 day
Updated 31 August 2026 22:49 BST
7-Day Snow Forecast for Biwako Valley
1-week from 1 September.
For Forecast detail, see below.
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Biwako Valley 7-Day Snow Forecast Highlights
When will there be fresh snow in Biwako Valley?
| Next Snow? | |
|---|---|
| There is no snow currently in the forecast for Biwako Valley. |
7-Day Snow Outlook for Biwako Valley
Snowfall
Snow Line
Max 26℃ 78°F
Min 15℃ 58°F
Snow unlikely
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Biwako Valley 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 25℃ 77°F
Min 21℃ 69°F
Valley temperatures from an overnight low of 21℃ 69°F to daytime highs around 25℃ 77°F
Temperature at BaseTemp at Base
Tue
01
Snow unlikely
Rain showers first, light drizzle then rain showers, clear sky later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 25℃ 76°F
Min 20℃ 67°F
Valley temperatures from an overnight low of 20℃ 67°F to daytime highs around 25℃ 76°F
Temperature at BaseTemp at Base
Wed
02
Snow unlikely
Fair first, rain then light rain showers, clear spells later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 21℃ 70°F
Min 15℃ 58°F
Valley temperatures from an overnight low of 15℃ 58°F to daytime highs around 21℃ 70°F
Temperature at BaseTemp at Base
Thu
03
Snow unlikely
Cloudy first, rain then light drizzle, cloudy later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 20℃ 67°F
Min 15℃ 58°F
Valley temperatures from an overnight low of 15℃ 58°F to daytime highs around 20℃ 67°F
Temperature at BaseTemp at Base
Fri
04
Snow unlikely
Cloudy.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 19℃ 66°F
Min 16℃ 61°F
Valley temperatures from an overnight low of 16℃ 61°F to daytime highs around 19℃ 66°F
Temperature at BaseTemp at Base
Sat
05
Snow unlikely
Cloudy.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 21℃ 70°F
Min 17℃ 62°F
Valley temperatures from an overnight low of 17℃ 62°F to daytime highs around 21℃ 70°F
Temperature at BaseTemp at Base
Sun
06
Snow unlikely
Light drizzle early, then clear spells later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 26℃ 78°F
Min 19℃ 66°F
Valley temperatures from an overnight low of 19℃ 66°F to daytime highs around 26℃ 78°F
Temperature at BaseTemp at Base
Mon
07
Snow unlikely
Light drizzle first, drizzle then light drizzle, drizzle later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
No significant snowfall is forecast for this period.
This Snow Forecast for Biwako Valley, 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 Biwako Valley, 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.
Biwako Valley Snow Forecast updated at 22:49 BST, next update expected 04:00 BST.
Snow Reliability
Biwako Valley typically sees a snow depth of around 1 to 2 meters throughout the season, with reliable snowfall from December to March. For the latest snow conditions, check updates on J2Ski.