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Happo One 7-Day Snow Forecast - 2nd May 2026

Happo One Snow Forecast - 7 day

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JMA

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Updated 02 May 2026 17:41 BST

7-Day Snow Forecast for Happo One

1-week from 2 May.

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 24℃ 74°F
Min 4℃ 39°F

6cm 2in New Snow

Snow Line from 1,683m 5,522ft to 1,360m 4,462ft , with rain below.

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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 18℃ 64°F
Min 11℃ 51°F

Valley temperatures from an overnight low of 11℃ 51°F to daytime highs around 18℃ 64°F

Temperature at BaseTemp at Base

Sat
02

Snow unlikely

ClearClearClearCloud

Clear sky early, then cloudy later.

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

Max 18℃ 65°F
Min 10℃ 49°F

Valley temperatures from an overnight low of 10℃ 49°F to daytime highs around 18℃ 65°F

Temperature at BaseTemp at Base

Sun
03

Snow unlikely

MixedShwrsLt RainClear

Clear spells first, rain showers then light rain, clear sky later.

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

Max 21℃ 70°F
Min 7℃ 44°F

Valley temperatures from an overnight low of 7℃ 44°F to daytime highs around 21℃ 70°F

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Mon
04

up to 4cm up to 1in New Snow

FairShwrsLt DrizzleClear

Fair first, rain showers then light drizzle, clear sky later.

Snow Line from 1,683m 5,522ft to 1,560m 5,118ft , with rain below.

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

Max 18℃ 64°F
Min 4℃ 39°F

Valley temperatures from an overnight low of 4℃ 39°F to daytime highs around 18℃ 64°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Tue
05

up to 2cm up to 1in New Snow

ClearClearClearMixed

Clear sky early, then clear spells later.

Snow Line from 1,498m 4,915ft to 1,360m 4,462ft , with rain below.

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

Max 22℃ 72°F
Min 5℃ 41°F

Valley temperatures from an overnight low of 5℃ 41°F to daytime highs around 22℃ 72°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

Wed
06

Snow unlikely

FairClearClearClear

Fair early, then clear sky later.

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

Max 24℃ 74°F
Min 6℃ 43°F

Valley temperatures from an overnight low of 6℃ 43°F to daytime highs around 24℃ 74°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

Thu
07

Snow unlikely

ClearFairFairCloud

Clear sky, fair, cloudy later.

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

Max 22℃ 71°F
Min 7℃ 44°F

Valley temperatures from an overnight low of 7℃ 44°F to daytime highs around 22℃ 71°F

Temperature at BaseTemp at Base

Fri
08

Snow unlikely

CloudLt DrizzleLt RainLt Rain

Cloudy, light drizzle, light rain later.

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

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 17:41 BST, next update expected imminently.

Snow Forecast near Happo One

Snow Forecasts for Ski Resorts near Happo One
Ski Area 48 Hr 7 DaySaSuMoTuWeThFr
Myoko Suginohara 1cm - 4cm 2in
Tsugaike Kogen- 2cm 1in
Hakuba 47- 1cm -

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.