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Hachimantai Long-Range Snow Forecast - 2nd September 2026

Hachimantai Long-Range Snow Forecast Updated today

ECMWF IFS
GFS
JMA

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Updated 01 September 2026 14:49 PDT

Long-Range Snow Forecast for Hachimantai

Long-range (14 to 45 days) from 2 September.

For Forecast detail, see below.

Hachimantai Snow Forecast Highlights

When will there be fresh snow in Hachimantai?

Hachimantai Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (3,937ft)
Next Snow?
There is no snow currently in the forecast for Hachimantai.

Long-range Snow Outlook for Hachimantai

 
Snowfall

 
Snow Line

Max 74°F
Min 49°F

Snow unlikely

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Hachimantai Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Hachimantai from OpenMeteo(JMA)
BaseSnow and WeatherTemp
Town
Wed
02
Lt Drizzle

Light drizzle.

Max 69°F
Min 60°F
Thu
03
Lt Rain

Light rain.

Max 65°F
Min 61°F
Fri
04
Mixed

Clear spells.

Max 66°F
Min 54°F
Sat
05
Mixed

Clear spells.

Max 65°F
Min 50°F
Sun
06
Cloud

Cloudy.

Max 64°F
Min 49°F
Mon
07
Shwrs

Rain showers.

Max 67°F
Min 54°F
Tue
08
Lt Drizzle

Light drizzle.

Max 74°F
Min 61°F

No significant snowfall is forecast for this period.

This Snow Forecast for Hachimantai, 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 Hachimantai, 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.

Hachimantai Snow Forecast updated at 14:49 PDT, next update expected 20:00 PDT.

Ensemble forecast for Hachimantai, Japan at 3,117ft

Daily Mean Temperature (yellow line is control)
Daily Total Precipitation (blue line is control)

Japan Accommodation (Apartments, Chalets, Hotels) Map

 

Snow Reliability

Hachimantai enjoys reliable snow conditions, with average snow depth reaching up to 2 meters during peak season. For the latest snow information, check J2Ski regularly.

Off-Piste Safety in Hachimantai

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