Biwako Valley Long-Range Snow Forecast Updated today
Updated 31 August 2026 16:43 BST
Long-Range Snow Forecast for Biwako Valley
Long-range (14 to 45 days) from 31 August.
For Forecast detail, see below.
Biwako Valley 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. |
Long-range Snow Outlook for Biwako Valley
Snowfall
Snow Line
Max 25℃ 78°F
Min 16℃ 61°F
Snow unlikely
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Biwako Valley Long-Range (2 weeks+) Snow Forecast Outlook
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.
| Base | Snow and Weather | Temp Town | |
|---|---|---|---|
| Mon 31 |  | Light snow at altitude, light rain below. | Max 24℃ 75°F Min 21℃ 69°F |
| Tue 01 | | Fair. | Max 25℃ 78°F Min 21℃ 70°F |
| Wed 02 | | Fair. | Max 25℃ 78°F Min 20℃ 69°F |
| Thu 03 |  | Rain. | Max 20℃ 69°F Min 16℃ 61°F |
| Fri 04 |  | Cloudy. | Max 21℃ 69°F Min 16℃ 62°F |
| Sat 05 | | Cloudy. | Max 21℃ 70°F Min 17℃ 62°F |
| Sun 06 |  | Light drizzle. | Max 21℃ 70°F Min 18℃ 65°F |
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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 16:43 BST, next update expected 22:00 BST.
Ensemble forecast for Biwako Valley, Japan at 940m
Daily Mean Temperature (yellow line is control)
Daily Total Precipitation (blue line is control)
Japan Accommodation (Apartments, Chalets, Hotels) Map
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.
Off-Piste Safety in Biwako Valley
Before skiing or snowboarding off-piste in Biwako Valley, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.