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A decade-old plan to build the UK’s new longest indoor ski slope have been approved, apparently meaning construction can now finally go ahead.
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Heavens Sonohara Snow World at 1488 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 09 Jan 2026
Now
Friday 9 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  |  |  |  |  | | |  | | | |  | |  | |
clear | clear | some clouds | clear | some clouds | light snow | light snow | mod. snow | snow shwrs | clear | clear | cloudy | light snow | light snow | snow shwrs | snow shwrs | snow shwrs | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | 4 | 4 | 6 | 12 | — | — | — | 1 | 3 | 2 | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -5 | -4 | -3 | -1 | 0 | 0 | -9 | -12 | -11 | -8 | -6 | -3 | -1 | -5 | -9 | -8 | -8 | -5 |
min °C | -8 | -4 | -3 | -3 | -1 | -6 | -10 | -12 | -12 | -10 | -7 | -5 | -2 | -7 | -9 | -9 | -8 | -8 |
-12 | -7 | -6 | -8 | -7 | -15 | -23 | -26 | -24 | -18 | -13 | -10 | -11 | -17 | -19 | -19 | -18 | -16 | |
41 | 51 | 36 | 35 | 46 | 95 | 94 | 93 | 93 | 65 | 79 | 49 | 77 | 95 | 90 | 88 | 79 | 64 | |
300 | 950 | 0 | 1050 | 1500 | 1400 | 200 | 0 | 0 | 0 | 550 | 0 | 1350 | 800 | 0 | 150 | 450 | 0 | |
 | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 4:52 | — | — | 4:53 | — | — | 4:54 | — | — | 4:55 | — | — | 4:57 | — | — | 4:58 | — |
Next 0-3 days weather summary:
A heavy fall of snow, heaviest during Sun night. Temperatures will be below freezing (max 0°C on Sat afternoon, min -12°C on Sun afternoon). Winds increasing (calm on Fri morning, gales from the WNW by Sun afternoon).
Next 4-6 days weather summary:
A light covering of new snow, mostly falling on Tue afternoon. Temperatures will be below freezing (max -1°C on Tue morning, min -10°C on Mon morning). Winds increasing (light winds from the W on Mon night, strong winds from the WSW by Tue morning).
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Latest snow reports near Heavens Sonohara Snow World:
Heavens Sonohara Snow World Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 3 cm |
| Last snowfall: | 8 Jan 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
Snow History
Week 2 of January has on average:
0.8 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.0 | Powder days Fresh snow, limited sun, any wind. |
3.4 | Bluebird days Average snow, mostly sunny, light wind. |
Heavens Sonohara Snow World Forecast Snowfall
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Other resorts in Japan - Nagano are reporting: powder (2) / good piste (2)
The above table gives the weather forecast for Heavens Sonohara Snow World at the specific elevation of 1488 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Heavens Sonohara Snow World. 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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