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Biwako Valley 7-Day Snow Forecast - 1st October 2026

Biwako Valley Snow Forecast - 7 day

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JMA

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Updated 01 October 2026 19:44 AEST

7-Day Snow Forecast for Biwako Valley

1-week from 1 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 8℃

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 18℃
Min 13℃

Valley temperatures from an overnight low of 13℃ to daytime highs around 18℃

Temperature at BaseTemp at Base

Thu
01

Snow unlikely

ClearFairLt DrizzleFair

Clear sky first, fair then light drizzle, fair later.

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

Max 16℃
Min 11℃

Valley temperatures from an overnight low of 11℃ to daytime highs around 16℃

Temperature at BaseTemp at Base

Fri
02

Snow unlikely

ClearShwrsMixedFair

Clear sky first, rain showers then clear spells, fair later.

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

Max 14℃
Min 9℃

Valley temperatures from an overnight low of 9℃ to daytime highs around 14℃

Temperature at BaseTemp at Base

Sat
03

Snow unlikely

ClearClearMixedFair

Clear sky, clear spells, fair later.

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

Max 17℃
Min 10℃

Valley temperatures from an overnight low of 10℃ to daytime highs around 17℃

Temperature at BaseTemp at Base

Sun
04

Snow unlikely

MixedLt DrizzleMixedLt Drizzle

Clear spells first, light drizzle then clear spells, light drizzle 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

Mon
05

Snow unlikely

MixedMixedMixedLt Drizzle

Clear spells early, then light drizzle later.

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

Max 16℃
Min 13℃

Valley temperatures from an overnight low of 13℃ to daytime highs around 16℃

Temperature at BaseTemp at Base

Tue
06

Snow unlikely

Lt RainHvy DrizzleHvy DrizzleLt Drizzle

Light rain, heavy drizzle, light drizzle later.

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

Max 13℃
Min 8℃

Valley temperatures from an overnight low of 8℃ to daytime highs around 13℃

Temperature at BaseTemp at Base

Wed
07

Snow unlikely

Lt DrizzleLt DrizzleClearFair

Light drizzle, clear sky, fair 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 19:44 AEST, next update expected 01:00 AEST.

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.