Hachimantai Weather
Weather Forecast for Hachimantai ( 950m to 1,450m 3,117ft to 4,757ft )
This is the Weather Outlook for Hachimantai from 9 February.
Updated 09 February 2026 10:06 GMT.
Hachimantai Forecast
See below for the detailed long-range forecast, including lowest and highest temperatures, sunshine, cloud cover, wind and rain projections.
Hachimantai Weather Forecast updated at 10:06 GMT, next update expected 16:00 GMT.
Long-range Snow Outlook for Hachimantai
Snowfall
Snow Line
10cm 4in New Snow
Snow falling to resort level ( 950m 3,117ft ).
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Hachimantai has up to 11cm 4in new snow forecast in the next 7 days.*
JMA - at altitude
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Hachimantai Daily Weather Forecast Detail
| Base | Snow and Weather | Temp Town | |
|---|---|---|---|
| Mon 09 |  | 2cm 1in New Snow | Max -8℃ 17°F Min -10℃ 13°F |
| Tue 10 |  | 1cm New Snow | Max -1℃ 31°F Min -8℃ 18°F |
| Wed 11 |  | 6cm 2in New Snow | Max 0℃ 32°F Min -6℃ 22°F |
| Thu 12 |  | 1cm New Snow | Max -3℃ 27°F Min -8℃ 18°F |
| Fri 13 | | 1cm New Snow | Max 1℃ 34°F Min -3℃ 27°F |
| Sat 14 |  | Fair. | Max 3℃ 37°F Min -6℃ 21°F |
| Sun 15 | | Clear spells. | Max 7℃ 45°F Min -5℃ 23°F |
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In to see the full long-range weather forecast (out to 16 days, with more weather detail).
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 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.
Hachimantai Weather Forecast updated at 10:06 GMT, next update expected 16:00 GMT.
Current Snow
For current snow depths and skiing conditions, see our Current Snow Report for Hachimantai.For more information about this Japanese Ski Resort, See Also Skiing and Snowboarding in Hachimantai .
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.