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Happo One 7-Day Snow Forecast - 12th August 2026

Happo One Snow Forecast - 7 day

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JMA

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Updated 12 August 2026 04:48 CDT

7-Day Snow Forecast for Happo One

1-week from 12 August.

For Forecast detail, see below.

Happo One 7-Day Snow Forecast Highlights

When will there be fresh snow in Happo One?

Happo One Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (1,296m)
Next Snow?
There is no snow currently in the forecast for Happo One.

7-Day Snow Outlook for Happo One

 
Snowfall

 
Snow Line

Max 30℃
Min 12℃

Snow unlikely

Happo One Medium-Range (7-Day) Snow Forecast Detail

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.

Max 21℃
Min 19℃

Valley temperatures from an overnight low of 19℃ to daytime highs around 21℃

Temperature at BaseTemp at Base

Wed
12

Snow unlikely

MixedLt DrizzleFairFair

Clear spells, light drizzle, fair later.

Forecast times for Happo One are in Tokyo (Asia/Tokyo) time zone.

Max 24℃
Min 19℃

Valley temperatures from an overnight low of 19℃ to daytime highs around 24℃

Temperature at BaseTemp at Base

Thu
13

Snow unlikely

FairMixedFairFair

Fair, clear spells, fair later.

Forecast times for Happo One are in Tokyo (Asia/Tokyo) time zone.

Max 26℃
Min 20℃

Valley temperatures from an overnight low of 20℃ to daytime highs around 26℃

Temperature at BaseTemp at Base

Fri
14

Snow unlikely

FairShwrsMixedFair

Fair first, rain showers then clear spells, fair later.

Forecast times for Happo One are in Tokyo (Asia/Tokyo) time zone.

Max 27℃
Min 16℃

Valley temperatures from an overnight low of 16℃ to daytime highs around 27℃

Temperature at BaseTemp at Base

Sat
15

Snow unlikely

FairClearFairClear

Fair first, clear sky then fair, clear sky later.

Forecast times for Happo One are in Tokyo (Asia/Tokyo) time zone.

Max 28℃
Min 15℃

Valley temperatures from an overnight low of 15℃ to daytime highs around 28℃

Temperature at BaseTemp at Base

Sun
16

Snow unlikely

ClearClearClearFair

Clear sky early, then fair later.

Forecast times for Happo One are in Tokyo (Asia/Tokyo) time zone.

Max 28℃
Min 12℃

Valley temperatures from an overnight low of 12℃ to daytime highs around 28℃

Temperature at BaseTemp at Base

Mon
17

Snow unlikely

FairLt DrizzleFairFair

Fair, light drizzle, fair later.

Forecast times for Happo One are in Tokyo (Asia/Tokyo) time zone.

Max 30℃
Min 16℃

Valley temperatures from an overnight low of 16℃ to daytime highs around 30℃

Temperature at BaseTemp at Base

Tue
18

Snow unlikely

FairMixedLt DrizzleLt Drizzle

Fair, clear spells, light drizzle later.

Forecast times for Happo One are in Tokyo (Asia/Tokyo) time zone.

No significant snowfall is forecast for this period.

This Snow Forecast for Happo One, 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 Happo One, 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.

Happo One Snow Forecast updated at 04:48 CDT, next update expected imminently.

Snow Reliability

Happo One typically enjoys reliable snow conditions, with an average snow depth of 3 to 4 meters during peak season. For the latest snow reports and updates, check J2Ski.