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Karuizawa Weather Forecast - 7 to 16 days - 12th June 2026

Karuizawa Weather

ECMWF IFS
GFS
JMA

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

Weather Outlook from 12 June.

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 02:41 PDT, next update expected imminently.

Long-range Snow Outlook for Karuizawa

 
Snowfall

 
Snow Line

Max 76°F
Min 50°F

Snow unlikely

Karuizawa Daily Weather Forecast Detail

16 Day Weather and Snow Forecast for Karuizawa from OpenMeteo(JMA)
BaseSnow and WeatherTemp
Town
Fri
12
Lt Drizzle

Light drizzle.

Max 64°F
Min 55°F
Sat
13
Clear

Clear sky.

Max 72°F
Min 54°F
Sun
14
Fair

Fair.

Max 69°F
Min 57°F
Mon
15
Fair

Fair.

Max 66°F
Min 51°F
Tue
16
Clear

Clear sky.

Max 71°F
Min 50°F
Wed
17
Fair

Fair.

Max 76°F
Min 51°F
Thu
18
Lt Drizzle

Light drizzle.

Max 73°F
Min 56°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 02:41 PDT, next update expected imminently.

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.