Biwako Valley Long-Range Snow Forecast Updated today
Updated 17 April 2026 10:42 UTC
Long-Range Snow Forecast for Biwako Valley
Long-range (14 to 45 days) from 17 April.
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 17℃ 63°F
Min 4℃ 39°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 17 |  | Fair. | Max 16℃ 62°F Min 10℃ 50°F |
| Sat 18 | | Clear spells. | Max 14℃ 57°F Min 6℃ 43°F |
| Sun 19 |  | Clear sky. | Max 17℃ 63°F Min 4℃ 39°F |
| Mon 20 | | Clear sky. | Max 16℃ 61°F Min 9℃ 48°F |
| Tue 21 |  | Rain showers. | Max 11℃ 52°F Min 7℃ 44°F |
| Wed 22 | | Clear sky. | Max 14℃ 58°F Min 6℃ 43°F |
| Thu 23 |  | Cloudy. | Max 12℃ 53°F Min 7℃ 44°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 10:42 UTC, next update expected 16:00 UTC.
Ensemble forecast for Biwako Valley, Japan at 940m
Daily Mean Temperature (yellow line is control)
Daily Total Precipitation (blue line is control)
Snow Forecast near Biwako Valley
| Ski Area | 48 Hr | 7 Day | Fr | Sa | Su | Mo | Tu | We | Th |
|---|---|---|---|---|---|---|---|---|---|
| Myoko Suginohara | - | 30cm 12in |
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.