J2Ski USA J2Ski logo
Facebook

Biwako Valley Snow Forecast - 48 hour - 23rd May 2026

Biwako Valley 48-Hour Snow Forecast

ECMWF IFS
GFS
JMA

PROSubscribe to Switch Weather Model

Updated 23 May 2026 08:41 PDT

2-Day Forecast for Biwako Valley

48-hours from 23 May.

See below for forecast detail

Biwako Valley Snow Forecast updated at 08:41 PDT, next update expected imminently.

Forecast for today in Biwako Valley

Max 67°F
Min 60°F

Valley temperatures from an overnight low of 60°F to daytime highs around 67°F

Temperature at BaseTemp at Base

Sat
23

Snow unlikely

MixedCloudFairShwrs

Clear spells first, cloudy then fair, rain showers later.

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

Forecast for tomorrow in Biwako Valley

Max 61°F
Min 54°F

Valley temperatures from an overnight low of 54°F to daytime highs around 61°F

Temperature at BaseTemp at Base

Sun
24

Snow unlikely

MixedMixedFairClear

Clear spells, fair, clear sky later.

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

Partner Offers

48-hour Forecast Detail

48 Hour Weather and Snow Forecast for Biwako Valley from OpenMeteo(JMA)
BaseSnow toWeatherTemp
Town
Rain or Snow?
Sat09:00Mixed

Clear spells.62°FS
Light
-125%
Sat10:00Cloud

Cloudy.64°FS
Light
-125%
Sat11:00Fair

Fair.65°FS
Calm
-125%
Sat12:00Mixed

Clear spells.65°FS
Calm
-125%
Sat13:00Mixed

Clear spells.66°FS
Calm
-125%
Sat14:00Fair

Fair.67°FS
Light
-125%
Sat15:00Mixed

Clear spells.66°FS
Calm
-125%
Sat16:00Cloud

Cloudy.65°FS
Calm
-125%
Sat17:00Cloud

Clear spells at altitude.
Cloud below.
63°FS
Light
-125%
Sat18:00Lt Drizzle

Cloudy at altitude.
Lt drizzle below.
63°FS
Light
-125%
Sat19:00Lt Drizzle

Light drizzle.62°FS
Light
-125%
Sat20:00Fair

Fair.62°FS
Light
-125%
Sat21:00Fair

Fair.61°FS
Light
-125%
Sat22:00Fair

Fair.60°FS
Breeze
-125%
Sat23:00Clear

Clear sky.60°FS
Breeze
-125%
Sun00:00Mixed

Clear spells.60°FSW
Breeze
-125%
Sun01:00Cloud

Cloudy.60°FSW
Breeze
-125%
Sun02:00Mixed

Light snow at altitude.
Lt rain below.
58°FSW
Breeze
-125%
Sun03:00Lt Rain

Heavy snow showers at altitude.
Lt rain below.
55°FSW
Light
-125%
Sun04:00Rain

Rain.54°FSW
Breeze
-125%
Sun05:00Rain

Rain.54°FSW
Light
-125%
Sun06:00Lt Drizzle

Light drizzle.55°FSW
Breeze
-125%
Sun07:00Cloud

Clear spells at altitude.
Cloud below.
56°FSW
Light
-125%
Sun08:00Lt Drizzle

Light drizzle.54°FSW
Light
-125%
Sun09:00Mixed

Clear spells.57°FSW
Light
-125%
Sun10:00Mixed

Cloudy at altitude.
Mixed below.
56°FSW
Light
-125%
Sun11:00Mixed

Clear spells.58°FSW
Light
-125%
Sun12:00Mixed

Clear spells.59°FSW
Light
-125%
Sun13:00Mixed

Clear spells.61°FSW
Light
-125%
Sun14:00Mixed

Clear spells.60°FSW
Light
-125%
Sun15:00Mixed

Fair at altitude.
Mixed below.
60°FSW
Light
-125%
Sun16:00Mixed

Clear spells.59°FSW
Light
-125%
Sun17:00Mixed

Clear spells.59°FSW
Light
-125%
Sun18:00Mixed

Cloudy at altitude.
Mixed below.
58°FSW
Light
-125%
Sun19:00Fair

Clear spells at altitude.
Fair below.
57°FSW
Calm
-125%
Sun20:00Fair

Fair.56°FSW
Light
-125%
Sun21:00Fair

Fair.56°FSW
Light
-125%
Sun22:00Fair

Fair.55°FSW
Light
-125%
Sun23:00Fair

Fair.55°FSW
Light
-125%
Mon00:00Fair

Fair.56°FSW
Light
-125%
Mon01:00Fair

Fair.56°FSW
Light
-125%
Mon02:00Fair

Fair.56°FSW
Light
-125%
Mon03:00Fair

Fair.54°FSW
Light
-125%
Mon04:00Fair

Fair.53°FSW
Light
-125%
Mon05:00Fair

Fair.52°FSW
Light
-125%
Mon06:00Clear

Clear sky.55°FSW
Light
-125%
Mon07:00Clear

Clear sky.59°FSW
Light
-125%
Mon08:00Clear

Clear sky.61°FSW
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 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.

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.