Biwako Valley Snow Forecast - 7 day
Updated 20 March 2026 15:41 PDT
7-Day Snow Forecast for Biwako Valley
1-week from 20 March.
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 Expected | 20 March |
|---|---|
| Next Snow Amount | 1in |
| Next 48 Hours | 1in |
| Next 7 Days | 1in |
7-Day Snow Outlook for Biwako Valley
Snowfall
Snow Line
Max 45°F
Min 21°F
1in New Snow
Snow falling to resort level (3,084ft).
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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 40°F
Min 27°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 27°F and rising to 40°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Fri
20
1in New Snow
Cloudy first, clear sky then heavy snow showers, clear sky later.
Snow falling to resort level (3,084ft).
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 33°F
Min 21°F
Valley temperatures from an overnight low of 21°F to daytime highs around 33°F
Temperature at BaseTemp at Base
Sat
21
Snow unlikely
Clear sky.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 45°F
Min 25°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 25°F and rising to 45°F
Temperature at BaseTemp at Base
Sun
22
Snow unlikely
Clear spells, fair, clear sky later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 45°F
Min 36°F
Valley temperatures from an overnight low of 36°F to daytime highs around 45°F
Temperature at BaseTemp at Base
Mon
23
Snow unlikely
Clear spells first, fair then light drizzle, light snow later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 42°F
Min 34°F
Valley temperatures from an overnight low of 34°F to daytime highs around 42°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Tue
24
Snow unlikely
Clear spells, fair, light drizzle later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 42°F
Min 34°F
Valley temperatures from an overnight low of 34°F to daytime highs around 42°F
Temperature at BaseTemp at Base
Wed
25
Snow unlikely
Drizzle early, then light drizzle later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
Max 44°F
Min 37°F
Valley temperatures from an overnight low of 37°F to daytime highs around 44°F
Temperature at BaseTemp at Base
Thu
26
Snow unlikely
Light drizzle first, cloudy then fair, clear sky later.
Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.
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 15:41 PDT, next update expected 21:00 PDT.
Snow Forecast near Biwako Valley
| Ski Area | 48 Hr | 7 Day | Fr | Sa | Su | Mo | Tu | We | Th |
|---|---|---|---|---|---|---|---|---|---|
| Happo One | 1in | 3in | |||||||
| Hakuba 47 | 1in | 2in | |||||||
| Tsugaike Kogen | 1in | 2in | |||||||
| Myoko Suginohara | - | 1in | |||||||
| Myoko Ikenotaira | - | - |
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.