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Karuizawa Weather Forecast - 7 to 16 days - 1st September 2026

Karuizawa Weather

ECMWF IFS
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JMA

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Weather Forecast for Karuizawa (3,084ft to 3,789ft)

Weather Outlook from 1 September.

Karuizawa Forecast

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

Karuizawa Weather Forecast updated at 20:41 PDT, next update expected imminently.

Long-range Snow Outlook for Karuizawa

 
Snowfall

 
Snow Line

Max 77°F
Min 56°F

Snow unlikely

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Karuizawa Daily Weather Forecast Detail

16 Day Weather and Snow Forecast for Karuizawa from OpenMeteo(JMA)
BaseSnow and WeatherTemp
Town
Tue
01
Mixed

Clear spells.

Max 70°F
Min 64°F
Wed
02
Fair

Fair.

Max 77°F
Min 66°F
Thu
03
Mixed

Clear spells.

Max 72°F
Min 61°F
Fri
04
Rain

Rain.

Max 61°F
Min 58°F
Sat
05
Lt Drizzle

Light drizzle.

Max 63°F
Min 56°F
Sun
06
Lt Drizzle

Light drizzle.

Max 67°F
Min 58°F
Mon
07
Drizzle

Drizzle.

Max 72°F
Min 66°F

No significant snowfall is forecast for this period.

This Snow Forecast for Karuizawa, 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 Karuizawa, 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.

Karuizawa Weather Forecast updated at 20:41 PDT, next update expected imminently.

Current Snow

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

Japan Accommodation (Apartments, Chalets, Hotels) Map

 

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

Off-Piste Safety in Karuizawa

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