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

Biwako Valley Weather

ECMWF IFS
GFS
JMA

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

Weather Outlook from 12 June.

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 20:41 PDT, next update expected 02:00 PDT.

Long-range Snow Outlook for Biwako Valley

 
Snowfall

 
Snow Line

Max 70°F
Min 49°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
Fri
12
Shwrs

Light snow at altitude, rain showers below.

Max 64°F
Min 55°F
Sat
13
Clear

Clear sky.

Max 66°F
Min 52°F
Sun
14
Clear

Fair at altitude, clear sky below.

Max 70°F
Min 60°F
Mon
15
Cloud

Cloudy.

Max 65°F
Min 53°F
Tue
16
Clear

Clear sky.

Max 68°F
Min 49°F
Wed
17
Mixed

Clear spells.

Max 70°F
Min 51°F
Thu
18
Shwrs

Rain showers.

Max 69°F
Min 56°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 20:41 PDT, next update expected 02:00 PDT.

Current Snow

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

Japan Accommodation (Apartments, Chalets, 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.