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Japan Weekly Snow Roundup #293
Weekly Snow News for Japan, updated 17 December 2025: Siberian cold fuels relentless powder storms, with Hokkaido leading Japan’s mid-winter surge.
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Namari Onsen at 345 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 18 Dec 2025
Now
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | |  |  | |  |  |  |  | | | | | | | |
some clouds | some clouds | snow shwrs | some clouds | some clouds | clear | clear | some clouds | some clouds | cloudy | light rain | light snow | some clouds | clear | clear | clear | some clouds | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | |
max °C | 0 | 0 | -1 | 2 | 3 | 1 | 10 | 7 | 6 | 11 | 11 | 7 | 1 | 1 | -2 | 2 | 3 | 1 |
min °C | -1 | -1 | -2 | 0 | 1 | 0 | 4 | 6 | 4 | 7 | 8 | 1 | 0 | -1 | -2 | -1 | 1 | 1 |
-8 | -5 | -6 | 0 | 0 | -2 | 2 | 4 | 2 | 6 | 5 | -5 | -5 | -4 | -4 | -1 | -2 | -1 | |
77 | 69 | 93 | 93 | 84 | 82 | 75 | 89 | 85 | 87 | 90 | 85 | 64 | 61 | 74 | 61 | 56 | 85 | |
250 | 350 | 0 | 450 | 1250 | 0 | 2100 | 2200 | 2400 | 2650 | 2400 | 900 | 350 | 400 | 0 | 0 | 1600 | 1750 | |
 | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 4:13 | — | — | 4:14 | — | — | 4:14 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — |
Next 0-3 days weather summary:
Mostly dry. Freeze-thaw conditions (max 10°C on Sat morning, min -2°C on Thu night). Winds decreasing (fresh winds from the WNW on Thu morning, calm by Fri morning).
Next 4-6 days weather summary:
Light rain (total 3.0mm), mostly falling on Sun afternoon. Freeze-thaw conditions (max 11°C on Sun morning, min -2°C on Mon night). Wind will be generally light.
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Latest snow reports near Namari Onsen:
25 km away from Namari Onsen
11 hours ago
Freezing rain reported from Morioka at 241 metres elevation 8 kms ENE of Morioka Highland but it is forecast cold enough for snow at the ski area from Morioka Highland
25 km away from Namari Onsen
17 hours agoRain and snow or hail reported from Morioka at 241 metres elevation 8 kms ENE of Morioka Highland Ski Resort from Morioka Highland
Namari Onsen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 7 cm |
| Last snowfall: | 17 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Iwate are reporting: powder (1) / good piste (1)
Snow History
Week 3 of December has on average:
1.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.3 | Powder days Fresh snow, limited sun, any wind. |
0.6 | Bluebird days Average snow, mostly sunny, light wind. |
Namari Onsen Forecast Snowfall
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Other resorts in Japan - Iwate are reporting: powder (1) / good piste (1)
The above table gives the weather forecast for Namari Onsen at the specific elevation of 345 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Namari Onsen. 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.
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