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Happo One Weather (Next 3 days): The snow forecast for Happo One is: Light rain (total 8.0mm) on Thu night. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 7°C on Thu morning, min -7°C on Fri afternoon). Wind will be generally light.
Happo One Weather (Days 4-6): Heavy rain (total 22.0mm) on Sun afternoon. Becoming colder with heavy fall of snow, heaviest during Sun night. Freeze-thaw conditions (max 3°C on Sun morning, min -9°C on Fri night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0.9 m | -6 |  | |||
| Middle Lift: | -3 | | ||||
| Bottom Lift: | 0.3 m | -3 | |
Latest snow reports near Happo One:
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
Continuous light 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
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  | |  |  |  |  | |  | | | | |  | | |
some clouds | some clouds | snow shwrs | some clouds | cloudy | light rain | heavy snow | light snow | light snow | light snow | some clouds | cloudy | light snow | light rain | heavy rain | heavy snow | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | 19 | 5 | 3 | 1 | — | — | — | — | — | 13 | |
— | — | 1 | — | — | 1 | 6 | — | — | — | — | — | — | 3 | 12 | 7 | |
max °C | -3 | 4 | 3 | 0 | 7 | 7 | 2 | -3 | -3 | -8 | 0 | 0 | -2 | 3 | 3 | 2 |
min °C | -4 | 2 | -1 | -2 | 4 | 2 | -4 | -4 | -7 | -9 | -3 | -5 | -3 | 2 | 3 | -1 |
-6 | 1 | -1 | -4 | 3 | 0 | -9 | -8 | -11 | -12 | -5 | -5 | -6 | 0 | 3 | -6 | |
84 | 70 | 80 | 67 | 50 | 57 | 97 | 86 | 84 | 92 | 74 | 83 | 77 | 74 | 99 | 93 | |
550 | 1100 | 1250 | 850 | 1600 | 1800 | 800 | 0 | 0 | 0 | 300 | 650 | 650 | 1150 | 1300 | 950 | |
 | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — |
 | — | — | 4:31 | — | — | 4:31 | — | — | 4:31 | — | — | 4:32 | — | — | 4:32 | — |
Light rain (total 8.0mm) on Thu night. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 7°C on Thu morning, min -7°C on Fri afternoon). Wind will be generally light.
Heavy rain (total 22.0mm) on Sun afternoon. Becoming colder with heavy fall of snow, heaviest during Sun night. Freeze-thaw conditions (max 3°C on Sun morning, min -9°C on Fri night). Wind will be generally light.
Latest snow reports near Happo One:
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
Continuous light 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: | 89 cm |
|---|---|
| Bottom snow depth: | 30 cm |
| Fresh snowfall depth: | 11 cm |
| Last snowfall: | 8 Dec 2025 |
| Snow Alerts | Create Alert |
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
0.0 | 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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