Happo One Weather (Next 3 days): The snow forecast for Happo One is: Heavy rain (total 30.0mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Sat night. Freeze-thaw conditions (max 6°C on Sat morning, min -4°C on Sat night). Wind will be generally light.
Happo One Weather (Days 4-6): Mild at first with light rain (total 2.0mm) on Mon afternoon followed by colder weather and light fall of snow, heaviest on Tue night. Freeze-thaw conditions (max 4°C on Mon morning, min -8°C on Tue night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 2.8 m | -3 |  | |||
| Middle Lift: | 1 | | ||||
| Bottom Lift: | 0.8 m | 3 |  |
Latest snow reports near Happo One:
Moderate to heavy freezing rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
Thu 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | |  |  | |  | | | | | |  | |
light rain | heavy rain | rain shwrs | clear | clear | some clouds | light rain | light snow | snow shwrs | snow shwrs | some clouds | some clouds | light snow | light snow | light snow | light snow | mod. snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 2 | 1 | 2 | 6 | |
5 | 21 | 1 | — | — | — | 3 | — | — | — | — | — | 1 | 1 | — | — | — | |
max °C | 3 | 3 | 4 | 4 | -2 | 6 | 4 | 0 | 1 | 0 | -3 | 4 | 3 | 1 | 1 | 0 | -5 |
min °C | 3 | 2 | 3 | -1 | -2 | 4 | 1 | -4 | -1 | -4 | -5 | 1 | 1 | 1 | 0 | -4 | -8 |
1 | 1 | 1 | -3 | -4 | 3 | -1 | -7 | -1 | -4 | -5 | 1 | 1 | 0 | -2 | -7 | -11 | |
95 | 98 | 88 | 77 | 59 | 54 | 86 | 92 | 82 | 85 | 73 | 69 | 86 | 93 | 95 | 93 | 93 | |
1400 | 1250 | 1150 | 1350 | 750 | 1500 | 1450 | 650 | 500 | 700 | 0 | 900 | 1200 | 1100 | 800 | 650 | 0 | |
 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — |
 | 4:54 | — | — | 4:55 | — | — | 4:57 | — | — | 4:58 | — | — | 4:59 | — | — | 5:00 | — |
Heavy rain (total 30.0mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Sat night. Freeze-thaw conditions (max 6°C on Sat morning, min -4°C on Sat night). Wind will be generally light.
Mild at first with light rain (total 2.0mm) on Mon afternoon followed by colder weather and light fall of snow, heaviest on Tue night. Freeze-thaw conditions (max 4°C on Mon morning, min -8°C on Tue night). Wind will be generally light.
Latest snow reports near Happo One:
Moderate to heavy freezing rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
| Top snow depth: | 280 cm |
|---|---|
| Bottom snow depth: | 75 cm |
| Fresh snowfall depth: | 38 cm |
| Last snowfall: | 14 Jan 2026 |
| Snow Alerts | Create Alert |
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.2 | Powder days Fresh snow, limited sun, any wind. |
0.6 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Happo One at the specific elevation of 760 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.
Overall 3.9 Based on 31 votes and 27 reviews
It is not raining at all. [note from the editor: thank you for submitting your weather observations. You may like to become an Eyeball Reporter, via Twitter. This review will remain in place for a short time.}
Yoshi from Japan writes:
It is not raining at all.
[note from the editor: thank you for submitting your weather observations. You may like to become an Eyeball Reporter, via Twitter. This review will remain in place for a short time.}
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