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Biwako Valley 7-Day Snow Forecast - 22nd May 2026

Biwako Valley Snow Forecast - 7 day

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JMA

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Updated 22 May 2026 10:41 CDT

7-Day Snow Forecast for Biwako Valley

1-week from 22 May.

For Forecast detail, see below.

Biwako Valley 7-Day Snow Forecast Highlights

When will there be fresh snow in Biwako Valley?

Biwako Valley Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (1,057m)
Next Snow?
There is no snow currently in the forecast for Biwako Valley.

7-Day Snow Outlook for Biwako Valley

 
Snowfall

 
Snow Line

Max 21℃
Min 10℃

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 15℃
Min 12℃

Valley temperatures from an overnight low of 12℃ to daytime highs around 15℃

Temperature at BaseTemp at Base

Fri
22

Snow unlikely

Lt DrizzleCloudFairFair

Light drizzle, cloudy, fair later.

Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.

Max 19℃
Min 12℃

Valley temperatures from an overnight low of 12℃ to daytime highs around 19℃

Temperature at BaseTemp at Base

Sat
23

Snow unlikely

CloudMixedMixedShwrs

Cloudy, clear spells, rain showers later.

Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.

Max 18℃
Min 12℃

Valley temperatures from an overnight low of 12℃ to daytime highs around 18℃

Temperature at BaseTemp at Base

Sun
24

Snow unlikely

FairFairClearClear

Fair early, then clear sky later.

Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.

Max 19℃
Min 11℃

Valley temperatures from an overnight low of 11℃ to daytime highs around 19℃

Temperature at BaseTemp at Base

Mon
25

Snow unlikely

FairMixedMixedMixed

Fair early, then clear spells later.

Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.

Max 20℃
Min 10℃

Valley temperatures from an overnight low of 10℃ to daytime highs around 20℃

Temperature at BaseTemp at Base

Tue
26

Snow unlikely

Lt DrizzleCloudCloudLt Drizzle

Light drizzle, cloudy, light drizzle later.

Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.

Max 20℃
Min 15℃

Valley temperatures from an overnight low of 15℃ to daytime highs around 20℃

Temperature at BaseTemp at Base

Wed
27

Snow unlikely

Lt DrizzleCloudLt DrizzleMixed

Light drizzle first, cloudy then light drizzle, clear spells later.

Forecast times for Biwako Valley are in Tokyo (Asia/Tokyo) time zone.

Max 21℃
Min 15℃

Valley temperatures from an overnight low of 15℃ to daytime highs around 21℃

Temperature at BaseTemp at Base

Thu
28

Snow unlikely

Lt DrizzleLt DrizzleLt DrizzleLt Drizzle

Light drizzle.

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 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 10:41 CDT, next update expected imminently.

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.