Biwako Valley Long-Range Snow Forecast Updated today
Updated 11 June 2026 20:41 PDT
Long-Range Snow Forecast for Biwako Valley
Long-range (14 to 45 days) from 12 June.
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 70°F
Min 49°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 | |
|---|---|---|---|
| Fri 12 |  | Light snow at altitude, rain showers below. | Max 64°F Min 55°F |
| Sat 13 |  | Clear sky. | Max 66°F Min 52°F |
| Sun 14 | | Fair at altitude, clear sky below. | Max 70°F Min 60°F |
| Mon 15 |  | Cloudy. | Max 65°F Min 53°F |
| Tue 16 | | Clear sky. | Max 68°F Min 49°F |
| Wed 17 |  | Clear spells. | Max 70°F Min 51°F |
| Thu 18 | | Rain showers. | Max 69°F Min 56°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 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 20:41 PDT, next update expected 02:00 PDT.
Ensemble forecast for Biwako Valley, Japan at 3,084ft
Daily Mean Temperature (yellow line is control)
Daily Total Precipitation (blue line is control)
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.