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Biwako Valley 7-Day Snow Forecast - 12th June 2026

Biwako Valley Snow Forecast - 7 day

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JMA

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Updated 12 June 2026 02:41 PDT

7-Day Snow Forecast for Biwako Valley

1-week from 12 June.

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 (3,468ft)
Next Snow?
There is no snow currently in the forecast for Biwako Valley.

7-Day Snow Outlook for Biwako Valley

 
Snowfall

 
Snow Line

Max 69°F
Min 51°F

Snow unlikely

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 64°F
Min 53°F

Valley temperatures from an overnight low of 53°F to daytime highs around 64°F

Temperature at BaseTemp at Base

Fri
12

Snow unlikely

ShwrsShwrsClearClear

Rain showers early, then clear sky later.

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

Max 66°F
Min 54°F

Valley temperatures from an overnight low of 54°F to daytime highs around 66°F

Temperature at BaseTemp at Base

Sat
13

Snow unlikely

ClearClearClearClear

Clear sky.

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

Max 69°F
Min 58°F

Valley temperatures from an overnight low of 58°F to daytime highs around 69°F

Temperature at BaseTemp at Base

Sun
14

Snow unlikely

ClearFairCloudFair

Clear sky first, fair then cloudy, fair later.

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

Max 66°F
Min 53°F

Valley temperatures from an overnight low of 53°F to daytime highs around 66°F

Temperature at BaseTemp at Base

Mon
15

Snow unlikely

Lt DrizzleMixedFairClear

Light drizzle first, clear spells then fair, clear sky later.

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

Max 68°F
Min 51°F

Valley temperatures from an overnight low of 51°F to daytime highs around 68°F

Temperature at BaseTemp at Base

Tue
16

Snow unlikely

ClearClearClearClear

Clear sky.

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

Max 69°F
Min 51°F

Valley temperatures from an overnight low of 51°F to daytime highs around 69°F

Temperature at BaseTemp at Base

Wed
17

Snow unlikely

Lt DrizzleLt DrizzleLt DrizzleMixed

Light drizzle early, then clear spells later.

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

Max 69°F
Min 58°F

Valley temperatures from an overnight low of 58°F to daytime highs around 69°F

Temperature at BaseTemp at Base

Thu
18

Snow unlikely

Lt DrizzleDrizzleLt DrizzleCloud

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

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 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 02:41 PDT, 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.