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Japan Weekly Snow Roundup #298
Weekly Snow News for Japan, updated 21 January 2026: Japan leads global snowfall again, with 1m (40") in 72 hours on Hokkaido and heavy, cold powder spreading into Honshu.
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Mammoth Mountain at 2896 m altitude
Issued by Snow-Forecast.com at: 3 am (local time) / 23 Jan 2026
Now
Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | |  | | | | |  | | |  | | | | |
clear | snow shwrs | some clouds | some clouds | clear | some clouds | cloudy | cloudy | some clouds | some clouds | some clouds | clear | clear | clear | cloudy | clear | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 0 | -1 | -4 | -6 | -6 | -3 | -3 | -4 | -4 | -2 | -2 | -2 | 0 | 0 | 0 | 1 | 1 | 0 |
min °C | 0 | -2 | -7 | -7 | -6 | -5 | -4 | -4 | -4 | -3 | -3 | -3 | -1 | -1 | -1 | 1 | -1 | -1 |
-2 | -2 | -12 | -13 | -11 | -8 | -8 | -8 | -7 | -6 | -6 | -3 | -1 | -1 | -1 | 1 | -1 | -1 | |
53 | 81 | 85 | 81 | 35 | 7 | 16 | 78 | 45 | 60 | 71 | 58 | 38 | 53 | 46 | 43 | 58 | 40 | |
2950 | 2800 | 2000 | 2000 | 2100 | 1550 | 2450 | 2350 | 1950 | 2450 | 2650 | 2300 | 2750 | 2950 | 2800 | 3000 | 3000 | 2850 | |
 | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — |
 | — | 5:08 | — | — | 5:10 | — | — | 5:12 | — | — | 5:13 | — | — | 5:14 | — | — | 5:15 | — |
Next 0-3 days weather summary:
Mostly dry. Temperatures will be below freezing (max 0°C on Fri morning, min -7°C on Fri night). Wind will be generally light.
Next 4-6 days weather summary:
Mostly dry. Freeze-thaw conditions (max 1°C on Wed morning, min -3°C on Mon morning). Wind will be generally light.
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Snow Radar
Latest snow reports near Mammoth Mountain:
Mammoth Mountain Snow Conditions
| Top snow depth: | 239 cm |
|---|---|
| Bottom snow depth: | 157 cm |
| Fresh snowfall depth: | — |
| Last snowfall: | 7 Jan 2026 |
| Snow Alerts | Create Alert |
Other resorts in USA - California are reporting: powder (0) / good piste (0)
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Snow History
Week 4 of January has on average:
1.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.0 | Powder days Fresh snow, limited sun, any wind. |
2.1 | Bluebird days Average snow, mostly sunny, light wind. |
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Mammoth Mountain Forecast Snowfall
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Photos of Mammoth Mountain
Mammoth Mountain Inn by mattmiller
deep pack by socalboarder
Mammoth Mountain CA by mattmiller
Upload new photo Other resorts in USA - California are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Mammoth Mountain at the specific elevation of 2896 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Mammoth Mountain. 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 United States.
Click here to read further information on freezing levels and how we forecast our temperatures.
Visitor Reviews of Mammoth Mountain
Overall 3.9 Based on 21 votes and 13 reviews
- Snowsure
- Variety of pistes
- Vote
- joe from United States writes:
Mammoth is a good time, spring skiing was amazingly good when we went in May. The snow was corn goodness, they stayed open 'til August in 2023! The staff made that happen, and that's the intangible which make the place special, the spirit of Dave Macoy? The Eastern Sierra? For the love, something though, its a happy mountain with really helpful and cheerful staff, people are generally stoked (and in this day and age (its gold). Demo ski set up best I've ever seen, all top bands all new, can swap out with ease at 4 locations.
Visitor Reviews of Mammoth Mountain
joe from United States writes:
Mammoth is a good time, spring skiing was amazingly good when we went in May. The snow was corn goodness, they stayed open 'til August in 2023! The staff made that happen, and that's the intangible which make the place special, the spirit of Dave Macoy? The Eastern Sierra? For the love, something though, its a happy mountain with really helpful and cheerful staff, people are generally stoked (and in this day and age (its gold). Demo ski set up best I've ever seen, all top bands all new, can swap out with ease at 4 locations.
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