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Biwako Valley Weather Forecast - 7 to 16 days - 21st March 2026

Biwako Valley Weather

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JMA

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

Weather Outlook from 21 March.

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 15:41 PDT, next update expected 21:00 PDT.

Long-range Snow Outlook for Biwako Valley

 
Snowfall

 
Snow Line

Max 49°F
Min 21°F

Snow unlikely

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Biwako Valley Daily Weather Forecast Detail

16 Day Weather and Snow Forecast for Biwako Valley from OpenMeteo(JMA)
BaseSnow and WeatherTemp
Town
Sat
21
Clear

Clear sky.

Max 33°F
Min 21°F
Sun
22
Mixed

Clear spells.

Max 45°F
Min 25°F
Mon
23
Shwrs

Light snow at altitude, rain showers below.

Max 45°F
Min 36°F
Tue
24
Mixed

Clear spells.

Max 42°F
Min 34°F
Wed
25
Drizzle

Drizzle.

Max 42°F
Min 34°F
Thu
26
Lt Drizzle

Light drizzle.

Max 44°F
Min 37°F
Fri
27
Clear

Clear sky.

Max 49°F
Min 34°F

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 15:41 PDT, next update expected 21:00 PDT.

Current Snow

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

Japan Hotels Map

 

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.