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

Biwako Valley Snow Forecast - 7 day

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JMA

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Updated 12 April 2026 03:41 PDT

7-Day Snow Forecast for Biwako Valley

1-week from 12 April.

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 61°F
Min 38°F

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 46°F
Min 38°F

Valley temperatures from an overnight low of 38°F to daytime highs around 46°F

Temperature at BaseTemp at Base

Sun
12

Snow unlikely

ClearClearFairClear

Clear sky, fair, clear sky later.

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

Max 58°F
Min 41°F

Valley temperatures from an overnight low of 41°F to daytime highs around 58°F

Temperature at BaseTemp at Base

Mon
13

Snow unlikely

ClearClearClearClear

Clear sky.

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

Max 56°F
Min 42°F

Valley temperatures from an overnight low of 42°F to daytime highs around 56°F

Temperature at BaseTemp at Base

Tue
14

Snow unlikely

ClearClearFairMixed

Clear sky, fair, clear spells later.

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

Max 57°F
Min 45°F

Valley temperatures from an overnight low of 45°F to daytime highs around 57°F

Temperature at BaseTemp at Base

Wed
15

Snow unlikely

MixedDrizzleDrizzleLt Drizzle

Clear spells, drizzle, light drizzle later.

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

Max 54°F
Min 42°F

Valley temperatures from an overnight low of 42°F to daytime highs around 54°F

Temperature at BaseTemp at Base

Thu
16

Snow unlikely

MixedClearClearFair

Clear spells, clear sky, fair later.

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

Max 61°F
Min 41°F

Valley temperatures from an overnight low of 41°F to daytime highs around 61°F

Temperature at BaseTemp at Base

Fri
17

Snow unlikely

MixedLt DrizzleHvy DrizzleLt Drizzle

Clear spells first, light drizzle then heavy drizzle, light drizzle later.

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

Max 54°F
Min 44°F

Valley temperatures from an overnight low of 44°F to daytime highs around 54°F

Temperature at BaseTemp at Base

Sat
18

Snow unlikely

Lt DrizzleLt DrizzleCloudClear

Light drizzle, cloudy, clear sky 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 03:41 PDT, next update expected 09:00 PDT.

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.