Biwako Valley Snow Forecast - 7 day
Updated 22 May 2026 20:42 PDT
7-Day Snow Forecast for Biwako Valley
1-week from 23 May.
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 70°F
Min 52°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 66°F
Min 60°F
Valley temperatures from an overnight low of 60°F to daytime highs around 66°F
Temperature at BaseTemp at Base
Sat
23
Snow unlikely
Cloudy first, clear spells then cloudy, rain showers later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 63°F
Min 54°F
Valley temperatures from an overnight low of 54°F to daytime highs around 63°F
Temperature at BaseTemp at Base
Sun
24
Snow unlikely
Clear spells early, then clear sky later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 67°F
Min 52°F
Valley temperatures from an overnight low of 52°F to daytime highs around 67°F
Temperature at BaseTemp at Base
Mon
25
Snow unlikely
Clear sky early, then clear spells later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 68°F
Min 52°F
Valley temperatures from an overnight low of 52°F to daytime highs around 68°F
Temperature at BaseTemp at Base
Tue
26
Snow unlikely
Clear spells early, then light drizzle later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 67°F
Min 59°F
Valley temperatures from an overnight low of 59°F to daytime highs around 67°F
Temperature at BaseTemp at Base
Wed
27
Snow unlikely
Cloudy first, light drizzle then light rain, clear spells later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 70°F
Min 58°F
Valley temperatures from an overnight low of 58°F to daytime highs around 70°F
Temperature at BaseTemp at Base
Thu
28
Snow unlikely
Light drizzle.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 68°F
Min 54°F
Valley temperatures from an overnight low of 54°F to daytime highs around 68°F
Temperature at BaseTemp at Base
Fri
29
Snow unlikely
Clear sky, fair, clear sky 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 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.
Biwako Valley Snow Forecast updated at 20:42 PDT, next update expected 02:00 PDT.
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.