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Happo One at 1831 m altitude
Issued by Snow-Forecast.com at: 8 pm (local time) / 15 Apr 2026
Happo One Weather
(Next 3 days):
Happo One Weather (Days 4-6):
Moderate rain (total 12.0mm), heaviest on Tue morning. Very mild (max 12°C on Mon morning, min 3°C on Tue morning). Wind will be generally light.Happo One Weather (Days 7-16):
Now
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  |  |  |  | | | | | | |  | |
mod. rain | clear | clear | clear | some clouds | cloudy | some clouds | light rain | rain shwrs | clear | clear | clear | clear | clear | rain shwrs | rain shwrs | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
10 | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | 1 | 1 | |
max °C | 5 | 5 | 6 | 7 | 10 | 9 | 6 | 7 | 6 | 5 | 9 | 10 | 9 | 12 | 12 | 8 |
min °C | 2 | 3 | 5 | 5 | 8 | 7 | 5 | 6 | 6 | 5 | 7 | 8 | 8 | 11 | 9 | 5 |
-2 | -1 | 2 | 3 | 6 | 7 | 2 | 4 | 5 | 4 | 5 | 7 | 8 | 11 | 9 | 2 | |
99 | 55 | 34 | 15 | 17 | 36 | 58 | 59 | 77 | 65 | 36 | 29 | 35 | 30 | 51 | 73 | |
2750 | 2350 | 3000 | 3400 | 3350 | 3150 | 3100 | 2700 | 2750 | 3000 | 3100 | 3150 | 3350 | 3400 | 3150 | 3250 | |
 | — | 5:13 | — | — | 5:13 | — | — | 5:11 | — | — | 5:09 | — | — | 5:09 | — | — |
 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — | — | 6:24 | — | — | 6:25 | — |
Next 0-3 days weather summary:
Moderate rain (total 12.0mm), heaviest on Wed night. Very mild (max 10°C on Fri morning, min 2°C on Wed night). Wind will be generally light.
Next 4-6 days weather summary:
Moderate rain (total 12.0mm), heaviest on Tue morning. Very mild (max 12°C on Mon morning, min 3°C on Tue morning). Wind will be generally light.
Popular Happo One Pages
Snow Radar
Latest snow reports near Happo One:
Happo One Snow Conditions
| Top snow depth: | 35 cm |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 7 Apr 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
Snow History
Week 3 of April has on average:
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.6 | Powder days Fresh snow, limited sun, any wind. |
0.0 | 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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