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Happo One Weather (Next 3 days): The snow forecast for Happo One is: Mostly dry. Freeze-thaw conditions (max 5°C on Thu morning, min -2°C on Fri night). Wind will be generally light.
Happo One Weather (Days 4-6): Moderate rain (total 11.0mm), heaviest on Mon morning giving way to a moderate fall of snow, heaviest on Mon night. Freeze-thaw conditions (max 5°C on Sun morning, min -5°C on Mon night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -2 |  | ||||
| Middle Lift: | 0 | | ||||
| Bottom Lift: | 2 | |
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 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | | | | | | |  |  | |  |  |  | | | |
clear | some clouds | some clouds | cloudy | some clouds | snow shwrs | some clouds | some clouds | some clouds | some clouds | clear | some clouds | cloudy | light rain | light rain | light rain | light snow | heavy snow | heavy snow | heavy snow | heavy snow | |
km/h | |||||||||||||||||||||
Snow map |  |  |  |  |  |  |  | ||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 11 | 14 | 22 | 33 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 5 | — | — | — | — | — | |
max°C | 3 | 3 | 3 | 5 | 5 | 2 | 2 | 1 | -1 | 2 | 3 | 3 | 5 | 4 | 5 | 5 | 1 | -3 | -5 | -7 | -7 |
min°C | 1 | 2 | 2 | 4 | 3 | 1 | 1 | 0 | -2 | 0 | 2 | 2 | 4 | 3 | 4 | 3 | -1 | -5 | -6 | -8 | -8 |
1 | 0 | -1 | 2 | -1 | -2 | -2 | -2 | -2 | -2 | 2 | 0 | 1 | 0 | 1 | -1 | -6 | -12 | -15 | -18 | -18 | |
47 | 51 | 42 | 41 | 48 | 72 | 70 | 72 | 69 | 55 | 50 | 36 | 26 | 53 | 92 | 84 | 86 | 89 | 92 | 93 | 95 | |
2150 | 2500 | 2350 | 2700 | 2600 | 2200 | 2250 | 2050 | 1400 | 1750 | 2250 | 2350 | 2700 | 2600 | 2800 | 2550 | 2000 | 1250 | 1050 | 850 | 750 | |
 | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — |
 | — | 4:42 | — | — | 4:40 | — | — | 4:39 | — | — | 4:39 | — | — | 4:38 | — | — | 4:37 | — | — | 4:37 | — |
Mostly dry. Freeze-thaw conditions (max 5°C on Thu morning, min -2°C on Fri night). Wind will be generally light.
Moderate rain (total 11.0mm), heaviest on Mon morning giving way to a moderate fall of snow, heaviest on Mon night. Freeze-thaw conditions (max 5°C on Sun morning, min -5°C on Mon 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: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 10 Nov 2025 |
| Snow Alerts | Create Alert |
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
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.
Overall 3.9 Based on 31 votes and 27 reviews
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.
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.
The Happo One skiing weather widget is available to embed on external websites free of charge. It provides a daily summary of our Happo One snow forecast and current weather conditions. Simply go to the feed configuration page and follow the 3 simple steps to grab the custom html code snippet and paste it into your own site. You can choose the snow forecast elevation (summit, mid-mountain or bottom lift) and metric/imperial units for the snow forecast feed to suit your own website…. Click here to get the code.
View detailed snow forecast for Happo One at:
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