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Biwako Valley Snow Forecast - 48 hour - 11th August 2026

Biwako Valley 48-Hour Snow Forecast

ECMWF IFS
GFS
JMA

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Updated 11 August 2026 09:46 UTC

2-Day Forecast for Biwako Valley

48-hours from 11 August.

See below for forecast detail

Biwako Valley Snow Forecast updated at 09:46 UTC, next update expected 15:00 UTC.

Forecast for today in Biwako Valley

Max 20℃ 68°F
Min 17℃ 62°F

Valley temperatures from an overnight low of 17℃ 62°F to daytime highs around 20℃ 68°F

Temperature at BaseTemp at Base

Tue
11

Snow unlikely

FairShwrsLt DrizzleClear

Fair first, rain showers then light drizzle, clear sky later.

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

Forecast for tomorrow in Biwako Valley

Max 24℃ 75°F
Min 17℃ 63°F

Valley temperatures from an overnight low of 17℃ 63°F to daytime highs around 24℃ 75°F

Temperature at BaseTemp at Base

Wed
12

Snow unlikely

ClearMixedClearFair

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

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

48-hour Forecast Detail

48 Hour Weather and Snow Forecast for Biwako Valley from OpenMeteo(JMA)
BaseSnow toWeatherTemp
Town
Rain or Snow?
Tue09:00Fair

Fair. 19℃ 66°F SW
Light
-125%
Tue10:00Fair

Clear spells at altitude.
Fair below.
19℃ 67°F SW
Light
-125%
Tue11:00Fair

Fair. 20℃ 68°F SW
Light
-125%
Tue12:00Fair

Fair. 20℃ 68°F SW
Light
-125%
Tue13:00Fair

Fair. 20℃ 68°F SW
Light
-125%
Tue14:00Mixed

Fair at altitude.
Mixed below.
20℃ 67°F SW
Light
-125%
Tue15:00Cloud

Cloudy. 19℃ 65°F SW
Light
-125%
Tue16:00Rain

Rain. 17℃ 62°F SW
Light
-125%
Tue17:00Drizzle

Light snow at altitude.
Drizzle below.
17℃ 63°F SW
Light
-125%
Tue18:00Rain

Rain. 18℃ 64°F SW
Light
-125%
Tue19:00Rain

Rain. 18℃ 64°F SW
Light
-125%
Tue20:00Hvy Drizzle

Snow at altitude.
Hvy drizzle below.
18℃ 64°F SW
Light
-125%
Tue21:00Lt Rain

Snow at altitude.
Lt rain below.
18℃ 65°F SW
Light
-125%
Tue22:00Hvy Drizzle

Light snow at altitude.
Hvy drizzle below.
19℃ 66°F SW
Light
-125%
Tue23:00Lt Drizzle

Light drizzle. 18℃ 65°F SW
Light
-125%
Wed00:00Lt Drizzle

Light drizzle. 18℃ 65°F SE
Light
-125%
Wed01:00Fair

Cloudy at altitude.
Fair below.
18℃ 63°F SE
Light
-125%
Wed02:00Fair

Fair. 17℃ 63°F SE
Light
-125%
Wed03:00Fair

Fair. 17℃ 63°F SE
Light
-125%
Wed04:00Fair

Fair. 18℃ 63°F SE
Light
-125%
Wed05:00Clear

Fair at altitude.
Clear below.
18℃ 64°F SE
Light
-125%
Wed06:00Clear

Fair at altitude.
Clear below.
18℃ 65°F SE
Light
-125%
Wed07:00Clear

Fair at altitude.
Clear below.
20℃ 67°F SE
Breeze
-125%
Wed08:00Clear

Clear sky. 22℃ 72°F SE
Breeze
-125%
Wed09:00Clear

Clear sky. 23℃ 73°F SE
Light
-125%
Wed10:00Clear

Clear sky. 24℃ 75°F SE
Light
-125%
Wed11:00Fair

Fair. 24℃ 75°F SE
Light
-125%
Wed12:00Mixed

Fair at altitude.
Mixed below.
24℃ 75°F SE
Light
-125%
Wed13:00Mixed

Clear spells. 23℃ 74°F SE
Light
-125%
Wed14:00Mixed

Fair at altitude.
Mixed below.
23℃ 73°F SE
Breeze
-125%
Wed15:00Mixed

Clear spells. 23℃ 73°F SE
Breeze
-125%
Wed16:00Mixed

Light snow at altitude.
Lt rain below.
22℃ 72°F SE
Breeze
-125%
Wed17:00Lt Drizzle

Clear spells at altitude.
Lt drizzle below.
22℃ 71°F SE
Breeze
-125%
Wed18:00Mixed

Clear spells. 22℃ 71°F SE
Breeze
-125%
Wed19:00Mixed

Clear spells. 21℃ 70°F SE
Breeze
-125%
Wed20:00Fair

Clear spells at altitude.
Fair below.
21℃ 70°F SE
Breeze
-125%
Wed21:00Fair

Clear spells at altitude.
Fair below.
21℃ 69°F SE
Light
-125%
Wed22:00Fair

Fair. 20℃ 68°F SE
Light
-125%
Wed23:00Clear

Clear sky. 20℃ 67°F SE
Light
-125%
Thu00:00Clear

Fair at altitude.
Clear below.
19℃ 66°F SE
Light
-125%
Thu01:00Mixed

Fair at altitude.
Mixed below.
19℃ 66°F SE
Light
-125%
Thu02:00Cloud

Clear spells at altitude.
Cloud below.
19℃ 65°F SE
Light
-125%
Thu03:00Cloud

Cloudy. 19℃ 66°F SE
Light
-125%
Thu04:00Cloud

Cloudy. 19℃ 65°F SE
Light
-125%
Thu05:00Cloud

Cloudy. 18℃ 65°F SE
Light
-125%
Thu06:00Fair

Fair. 19℃ 65°F SE
Light
-125%
Thu07:00Fair

Fair. 20℃ 69°F SE
Light
-125%
Thu08:00Fair

Fair. 22℃ 72°F SE
Light
-125%

Snow Forecast near Biwako Valley

Snow forecasts for nearby ski areas.

Snow Forecasts for other Ski Resorts near Biwako Valley are not available.

Biwako Valley Snow

For current snow depths and skiing conditions, see our Current Snow Report for Biwako Valley.

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.

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.