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Biwako Valley 7-Day Snow Forecast - 2nd July 2026

Biwako Valley Snow Forecast - 7 day

ECMWF IFS
GFS
JMA

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Updated 02 July 2026 08:41 PDT

7-Day Snow Forecast for Biwako Valley

1-week from 2 July.

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 72°F
Min 59°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 66°F
Min 61°F

Valley temperatures from an overnight low of 61°F to daytime highs around 66°F

Temperature at BaseTemp at Base

Thu
02

Snow unlikely

ShwrsShwrsDrizzleFair

Rain showers, drizzle, fair later.

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

Max 66°F
Min 59°F

Valley temperatures from an overnight low of 59°F to daytime highs around 66°F

Temperature at BaseTemp at Base

Fri
03

Snow unlikely

FairClearClearFair

Fair, clear sky, fair later.

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

Max 71°F
Min 59°F

Valley temperatures from an overnight low of 59°F to daytime highs around 71°F

Temperature at BaseTemp at Base

Sat
04

Snow unlikely

ClearFairCloudMixed

Clear sky first, fair then cloudy, clear spells later.

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

Max 71°F
Min 62°F

Valley temperatures from an overnight low of 62°F to daytime highs around 71°F

Temperature at BaseTemp at Base

Sun
05

Snow unlikely

FairLt DrizzleCloudLt Drizzle

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

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

Max 71°F
Min 60°F

Valley temperatures from an overnight low of 60°F to daytime highs around 71°F

Temperature at BaseTemp at Base

Mon
06

Snow unlikely

Lt DrizzleHvy DrizzleLt DrizzleLt Drizzle

Light drizzle, heavy drizzle, light drizzle later.

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

Max 72°F
Min 62°F

Valley temperatures from an overnight low of 62°F to daytime highs around 72°F

Temperature at BaseTemp at Base

Tue
07

Snow unlikely

Lt DrizzleDrizzleLt DrizzleLt Drizzle

Light drizzle, drizzle, light drizzle later.

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

Max 71°F
Min 63°F

Valley temperatures from an overnight low of 63°F to daytime highs around 71°F

Temperature at BaseTemp at Base

Wed
08

Snow unlikely

Lt DrizzleLt DrizzleMixedCloud

Light drizzle, clear spells, 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 08:41 PDT, next update expected 14:00 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.