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Japan Weekly Snow Roundup #300
Weekly Snow News for Japan, updated 4th February 2026: Snowpack passes six metres at Seki Onsen as storms continue.
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Mammoth Mountain at 3369 m altitude
Issued by Snow-Forecast.com at: 3 am (local time) / 05 Feb 2026
Now
Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | |  | | | | |  | |  | | | |
clear | some clouds | snow shwrs | light snow | light snow | some clouds | clear | clear | clear | clear | clear | some clouds | some clouds | cloudy | snow shwrs | snow shwrs | snow shwrs | snow shwrs | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 1 | 0 | -2 | -5 | -5 | -4 | -3 | -3 | -1 | 0 | -1 | 0 | -3 | -4 | -6 | -9 | -10 | -11 |
min °C | 1 | -1 | -7 | -6 | -6 | -5 | -4 | -3 | -3 | -1 | -1 | -3 | -3 | -5 | -10 | -9 | -11 | -13 |
-2 | -3 | -7 | -6 | -9 | -5 | -7 | -7 | -7 | -1 | -4 | -8 | -9 | -10 | -17 | -17 | -20 | -23 | |
23 | 43 | 46 | 95 | 92 | 63 | 56 | 58 | 38 | 29 | 49 | 39 | 59 | 82 | 90 | 31 | 60 | 83 | |
3500 | 3450 | 2950 | 2450 | 2600 | 2450 | 2800 | 2950 | 2850 | 3200 | 3300 | 3250 | 2900 | 2750 | 2150 | 2200 | 2100 | 1550 | |
 | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — |
 | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — | — | 5:28 | — | — | 5:29 | — |
Next 0-3 days weather summary:
A dusting of new snow. Freeze-thaw conditions (max 1°C on Thu morning, min -7°C on Thu night). Wind will be generally light.
Next 4-6 days weather summary:
A dusting of new snow. Temperatures will be below freezing (max 0°C on Sun morning, min -13°C on Tue night). Winds increasing (calm on Sun morning, fresh winds from the WSW by Tue morning).
Popular Mammoth Mountain Pages
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 1 of February has on average:
0.7 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.3 | Powder days Fresh snow, limited sun, any wind. |
2.7 | 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 3369 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
- ryan miller from United States writes:
Mammoth is the best of the big American ski resorts. It almost always has the most snow and it doesn't rain there like Tahoe and has the most lifts and skiable acres and some of the hairiest runs. I've been to Steamboat, Jackson Hole, Kikwood, Heavenly, Alpine Meadows, Mt Bachelor, Alta, Snowbird, Brian Head, Snow Basin, Mt Ashland, Mt Baldy, Snow Summit, Snow Valley, Mt High, Snowbowl, Purgatory, Arapahoe Basin. June Mtn is my second favorite and Brian Head and Snow Bowl and Steamboat then Alta and Bachelor.
Visitor Reviews of Mammoth Mountain
ryan miller from United States writes:
Mammoth is the best of the big American ski resorts. It almost always has the most snow and it doesn't rain there like Tahoe and has the most lifts and skiable acres and some of the hairiest runs. I've been to Steamboat, Jackson Hole, Kikwood, Heavenly, Alpine Meadows, Mt Bachelor, Alta, Snowbird, Brian Head, Snow Basin, Mt Ashland, Mt Baldy, Snow Summit, Snow Valley, Mt High, Snowbowl, Purgatory, Arapahoe Basin. June Mtn is my second favorite and Brian Head and Snow Bowl and Steamboat then Alta and Bachelor.
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