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Biwako Valley Weather Forecast - 7 to 16 days - 22nd July 2026

Biwako Valley Weather

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JMA

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Weather Forecast for Biwako Valley (940m to 1,174m)

Weather Outlook from 22 July.

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 03:41 NZST, next update expected 09:00 NZST.

Long-range Snow Outlook for Biwako Valley

 
Snowfall

 
Snow Line

Max 25℃
Min 17℃

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
22
Fair

Fair.

Max 25℃
Min 20℃
Thu
23
Fair

Fair.

Max 24℃
Min 20℃
Fri
24
Lt Drizzle

Light drizzle.

Max 24℃
Min 19℃
Sat
25
Fair

Fair.

Max 24℃
Min 19℃
Sun
26
Mixed

Clear spells.

Max 24℃
Min 18℃
Mon
27
Mixed

Clear spells.

Max 24℃
Min 17℃
Tue
28
Mixed

Clear spells.

Max 24℃
Min 19℃

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.

Biwako Valley Weather Forecast updated at 03:41 NZST, next update expected 09:00 NZST.

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.