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Karuizawa Weather Forecast - 7 to 16 days - 16th September 2026

Karuizawa Weather

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Weather Forecast for Karuizawa ( 940m to 1,155m 3,084ft to 3,789ft )

Weather Outlook from 16 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 03:40 UTC, next update expected imminently.

Long-range Snow Outlook for Karuizawa

 
Snowfall

 
Snow Line

Max 22℃ 72°F
Min 13℃ 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
Wed
16
Lt Rain

Light rain.

Max 17℃ 63°F
Min 16℃ 60°F
Thu
17
Fair

Fair.

Max 19℃ 67°F
Min 15℃ 58°F
Fri
18
Fair

Fair.

Max 18℃ 64°F
Min 13℃ 56°F
Sat
19
Mixed

Clear spells.

Max 22℃ 71°F
Min 14℃ 56°F
Sun
20
Lt Drizzle

Light drizzle.

Max 22℃ 72°F
Min 18℃ 63°F
Mon
21
Lt Rain

Light rain.

Max 22℃ 71°F
Min 19℃ 66°F
Tue
22
Hvy Drizzle

Heavy drizzle.

Max 21℃ 69°F
Min 19℃ 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 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.

Karuizawa Weather Forecast updated at 03:40 UTC, 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.