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Karuizawa Weather Forecast - 7 to 16 days - 22nd July 2026

Karuizawa Weather

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JMA

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Weather Forecast for Karuizawa (940m to 1,155m)

Weather Outlook from 22 July.

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 07:44 AEST, next update expected 10:00 AEST.

Long-range Snow Outlook for Karuizawa

 
Snowfall

 
Snow Line

Max 32℃
Min 18℃

Snow unlikely

Karuizawa Daily Weather Forecast Detail

16 Day Weather and Snow Forecast for Karuizawa from OpenMeteo(JMA)
BaseSnow and WeatherTemp
Town
Wed
22
Clear

Clear sky.

Max 32℃
Min 23℃
Thu
23
Clear

Clear sky.

Max 32℃
Min 21℃
Fri
24
Fair

Fair.

Max 27℃
Min 21℃
Sat
25
Lt Drizzle

Light drizzle.

Max 24℃
Min 20℃
Sun
26
Lt Drizzle

Light drizzle.

Max 25℃
Min 18℃
Mon
27
Lt Drizzle

Light drizzle.

Max 26℃
Min 18℃
Tue
28
Mixed

Clear spells.

Max 28℃
Min 19℃

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 07:44 AEST, next update expected 10:00 AEST.

Current Snow

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

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.