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Okunakayama Kōgen at 1000 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 20 Sep 2026
Next 3 days weather summary:Heavy rain (total 42.0mm), heaviest during Mon night. Very mild (max 18°C on Sun afternoon, min 12°C on Tue night). Winds increasing (calm on Mon afternoon, fresh winds from the NE by Tue morning). | Days 4-6 weather summary:Light rain (total 2.0mm), mostly falling on Thu afternoon. Very mild (max 17°C on Wed afternoon, min 11°C on Fri night). Wind will be generally light. | |||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | |  |  | |  | | | |  | |  | |
mod. rain | rain shwrs | light rain | light rain | light rain | heavy rain | mod. rain | rain shwrs | clear | clear | clear | cloudy | clear | rain shwrs | cloudy | cloudy | rain shwrs | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 7 | 2 | 1 | 4 | 3 | 18 | 6 | 1 | — | — | — | — | — | 1 | — | — | 1 | — |
max °C | 17 | 18 | 17 | 17 | 17 | 17 | 14 | 14 | 14 | 16 | 17 | 16 | 17 | 17 | 14 | 15 | 15 | 12 |
min °C | 16 | 17 | 17 | 17 | 17 | 15 | 14 | 14 | 12 | 15 | 15 | 14 | 16 | 15 | 13 | 14 | 13 | 11 |
chill °C | 16 | 17 | 16 | 17 | 17 | 13 | 12 | 12 | 11 | 15 | 15 | 14 | 16 | 15 | 11 | 12 | 12 | 10 |
Humid % | 94 | 83 | 97 | 99 | 98 | 99 | 94 | 98 | 60 | 37 | 56 | 54 | 51 | 76 | 56 | 80 | 78 | 68 |
Freeze m | 4300 | 4400 | 4600 | 4650 | 4850 | 4850 | 4800 | 4700 | 4000 | 4050 | 3950 | 3800 | 3600 | 3800 | 3800 | 3650 | 3550 | 3600 |
 | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — |
 | — | 5:37 | — | — | 5:35 | — | — | 5:32 | — | — | 5:31 | — | — | 5:30 | — | — | 5:28 | — |
Days 7-16 weather summary:
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Avalanche information: Japan Avalanche Network
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Latest snow reports near Okunakayama Kōgen:
Okunakayama Kōgen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 11 Apr 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Iwate are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of September has on average:
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
Okunakayama Kōgen Forecast Snowfall
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Other resorts in Japan - Iwate are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Okunakayama Kōgen at the specific elevation of 1000 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Okunakayama Kōgen. 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.
Resort name is also written as Okunakayama Kogen.
Visitor Reviews of Okunakayama Kōgen
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