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

Biwako Valley Snow Forecast - 7 day

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JMA

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Updated 12 October 2026 10:42 NZDT

7-Day Snow Forecast for Biwako Valley

1-week from 12 October.

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 18℃
Min 6℃

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 17℃
Min 11℃

Valley temperatures from an overnight low of 11℃ to daytime highs around 17℃

Temperature at BaseTemp at Base

Mon
12

Snow unlikely

FairFairClearClear

Fair early, then clear sky later.

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

Max 18℃
Min 11℃

Valley temperatures from an overnight low of 11℃ to daytime highs around 18℃

Temperature at BaseTemp at Base

Tue
13

Snow unlikely

ClearFairFairFair

Clear sky early, then fair later.

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

Max 17℃
Min 9℃

Valley temperatures from an overnight low of 9℃ to daytime highs around 17℃

Temperature at BaseTemp at Base

Wed
14

Snow unlikely

Lt RainShwrsMixedMixed

Light rain, rain showers, clear spells later.

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

Max 13℃
Min 6℃

Valley temperatures from an overnight low of 6℃ to daytime highs around 13℃

Temperature at BaseTemp at Base

Thu
15

Snow unlikely

FairClearClearClear

Fair early, then clear sky later.

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

Max 17℃
Min 6℃

Valley temperatures from an overnight low of 6℃ to daytime highs around 17℃

Temperature at BaseTemp at Base

Fri
16

Snow unlikely

ClearFairFairMixed

Clear sky, fair, clear spells later.

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

Max 16℃
Min 8℃

Valley temperatures from an overnight low of 8℃ to daytime highs around 16℃

Temperature at BaseTemp at Base

Sat
17

Snow unlikely

MixedMixedMixedFair

Clear spells early, then fair later.

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

Max 18℃
Min 7℃

Valley temperatures from an overnight low of 7℃ to daytime highs around 18℃

Temperature at BaseTemp at Base

Sun
18

Snow unlikely

ClearClearMixedMixed

Clear sky early, then clear spells 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 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 NZDT, next update expected 16:00 NZDT.

How reliable is the snow in Biwako Valley?

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.