J2Ski USA J2Ski logo
Facebook

Biwako Valley Weather Forecast - 7 to 16 days - 12th August 2026

Biwako Valley Weather

ECMWF IFS
GFS
JMA

PROSubscribe to Switch Weather Model

Weather Forecast for Biwako Valley (3,084ft to 3,852ft)

Weather Outlook from 12 August.

Biwako Valley Forecast

See below for the detailed long-range forecast, including lowest and highest temperatures, sunshine, cloud cover, wind and rain projections.

Biwako Valley Weather Forecast updated at 14:47 PDT, next update expected 20:00 PDT.

Long-range Snow Outlook for Biwako Valley

 
Snowfall

 
Snow Line

Max 80°F
Min 61°F

Snow unlikely

Biwako Valley Daily Weather Forecast Detail

16 Day Weather and Snow Forecast for Biwako Valley from OpenMeteo(JMA)
BaseSnow and WeatherTemp
Town
Wed
12
Fair

Fair.

Max 77°F
Min 63°F
Thu
13
Fair

Fair.

Max 80°F
Min 66°F
Fri
14
Lt Drizzle

Fair at altitude, light drizzle below.

Max 75°F
Min 66°F
Sat
15
Fair

Fair.

Max 76°F
Min 65°F
Sun
16
Clear

Clear sky.

Max 75°F
Min 64°F
Mon
17
Clear

Clear sky.

Max 76°F
Min 61°F
Tue
18
Fair

Fair.

Max 77°F
Min 64°F

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 Weather Forecast updated at 14:47 PDT, next update expected 20:00 PDT.

Current Snow

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

For more information about this Japanese Ski Resort, See Also Skiing and Snowboarding in Biwako Valley .

Off-Piste Safety in Biwako Valley

Before skiing or snowboarding off-piste in Biwako Valley, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.