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Happo One at 1831 m altitude
Issued by Snow-Forecast.com at: 2 am (local time) / 05 Apr 2026
Happo One Weather
(Next 3 days):
Happo One Weather (Days 4-6):
Heavy rain (total 39.0mm), heaviest during Fri afternoon. Later becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 8°C on Thu afternoon, min -3°C on Wed morning). Winds increasing (calm on Wed afternoon, fresh winds from the W by Fri night).Happo One Weather (Days 7-16):
Now
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  |  |  | | | | |  | | |  |  | |
cloudy | cloudy | clear | clear | light rain | light rain | mod. snow | light snow | snow shwrs | clear | clear | clear | clear | some clouds | light rain | light rain | heavy rain | light snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | 7 | 3 | — | — | — | — | — | — | — | — | — | 3 | |
— | — | — | — | 1 | 5 | — | — | — | — | — | — | — | — | 2 | 4 | 13 | 20 | |
max °C | 7 | 6 | 4 | 9 | 8 | 6 | 0 | -3 | -6 | 0 | 2 | 2 | 7 | 8 | 4 | 5 | 6 | 7 |
min °C | 6 | 5 | 4 | 6 | 7 | 3 | -2 | -5 | -8 | -3 | 1 | 1 | 4 | 6 | 3 | 4 | 5 | 2 |
5 | 5 | 3 | 4 | 4 | -1 | -5 | -10 | -15 | -7 | 1 | -2 | 2 | 4 | 0 | 1 | 2 | -4 | |
79 | 79 | 70 | 45 | 49 | 68 | 99 | 96 | 69 | 46 | 48 | 49 | 39 | 44 | 71 | 94 | 96 | 99 | |
3200 | 3200 | 2750 | 2850 | 2900 | 2600 | 1900 | 1250 | 500 | 1250 | 2250 | 2150 | 3100 | 2900 | 2750 | 3200 | 3400 | 3500 | |
 | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — | 5:24 | — | — | 5:24 | — | — | 5:22 | — | — |
 | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:17 | — |
Next 0-3 days weather summary:
Mild at first with light rain (total 6.0mm) on Mon night followed by colder weather and light fall of snow, heaviest on Tue morning. Freeze-thaw conditions (max 9°C on Mon morning, min -8°C on Tue night). Wind will be generally light.
Next 4-6 days weather summary:
Heavy rain (total 39.0mm), heaviest during Fri afternoon. Later becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 8°C on Thu afternoon, min -3°C on Wed morning). Winds increasing (calm on Wed afternoon, fresh winds from the W by Fri night).
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Snow Radar
Latest snow reports near Happo One:
Happo One Snow Conditions
| Top snow depth: | 130 cm |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 2 Apr 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
Snow History
Week 1 of April has on average:
0.8 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.0 | Powder days Fresh snow, limited sun, any wind. |
0.7 | Bluebird days Average snow, mostly sunny, light wind. |
Happo One Forecast Snowfall
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Photos of Happo One
Hakuba Japan by Chris Hocking
The day Happo One by Denis Akira Hayashihara
zoio Happo One by Denis Akira H
Upload new photo Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Happo One at the specific elevation of 1831 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Happo One. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
Visitor Reviews of Happo One
Overall 3.8 Based on 41 votes and 27 reviews
- Snowsure
- Variety of pistes
- Vote
- Mick from Australia writes:
Unfortunately, 2019/20 is shaping up as the worst season in decades. Happo is a great mountain, but unfortunately, snow conditions are just like back home, icy at the top and wet muck from the middle to bottom, with that famous Japan powder, just something others talk about.
Visitor Reviews of Happo One
Mick from Australia writes:
Unfortunately, 2019/20 is shaping up as the worst season in decades.
Happo is a great mountain, but unfortunately, snow conditions are just like back home, icy at the top and wet muck from the middle to bottom, with that famous Japan powder, just something others talk about.
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