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Japan Weekly Snow Roundup #304
Weekly Snow News for Japan, updated 4 March 2026: Japan's ski season transitions to spring, with Hokkaido's powder still reliable but Honshu seeing warmer temperatures, rain, and softening snow.
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Osa at 1030 m altitude
Issued by Snow-Forecast.com at: 2 am (local time) / 06 Mar 2026
Osa Weather
(Next 3 days):
Osa Weather (Days 4-6):
Mostly dry. Freeze-thaw conditions (max 3°C on Wed morning, min -4°C on Mon night). Winds decreasing (fresh winds from the NNW on Mon afternoon, calm by Wed night).Osa Weather (Days 7-16):
Now
Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  |  |  |  | | |  | | | |  | | | |
heavy rain | light snow | light snow | light snow | light snow | some clouds | some clouds | clear | clear | some clouds | light snow | snow shwrs | clear | clear | clear | cloudy | cloudy | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
14 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 4 | 4 | 1 | -2 | -2 | -4 | 0 | 1 | -1 | 0 | 0 | -2 | 1 | 2 | 0 | 3 | 2 | 1 |
min °C | 4 | 2 | -4 | -3 | -4 | -4 | -3 | 0 | -2 | -1 | -1 | -4 | -2 | 1 | -1 | 1 | 2 | -1 |
-2 | -2 | -12 | -10 | -12 | -12 | -7 | -3 | -6 | -5 | -8 | -10 | -6 | -1 | -5 | -3 | 0 | -5 | |
98 | 97 | 97 | 91 | 88 | 77 | 76 | 57 | 35 | 78 | 83 | 87 | 61 | 52 | 37 | 35 | 57 | 38 | |
2050 | 1650 | 950 | 650 | 800 | 500 | 650 | 1150 | 800 | 900 | 1050 | 600 | 800 | 1250 | 1050 | 1150 | 1350 | 1100 | |
 | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — |
Next 0-3 days weather summary:
Heavy rain (total 21.0mm), heaviest during Fri morning. Later becoming colder with a dusting of snow on Fri afternoon. Freeze-thaw conditions (max 4°C on Fri morning, min -4°C on Fri night). Winds decreasing (fresh winds from the WNW on Fri night, light winds from the NNW by Sun morning).
Next 4-6 days weather summary:
Mostly dry. Freeze-thaw conditions (max 3°C on Wed morning, min -4°C on Mon night). Winds decreasing (fresh winds from the NNW on Mon afternoon, calm by Wed night).
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Latest snow reports near Osa:
Osa Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 18 Feb 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
Snow History
Week 1 of March has on average:
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
0.7 | Bluebird days Average snow, mostly sunny, light wind. |
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Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Osa at the specific elevation of 1030 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. 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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