Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | |  |  |  |  | | | | |  | | | | |
clear | clear | some clouds | clear | clear | some clouds | some clouds | cloudy | light rain | light rain | light rain | light rain | light rain | light rain | cloudy | light rain | light rain | light rain | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 3 | 2 | 2 | — | 1 | 4 | 3 |
max °C | 6 | 7 | 6 | 8 | 8 | 7 | 8 | 8 | 6 | 8 | 8 | 7 | 4 | 3 | 3 | 3 | 3 | 6 |
min °C | 4 | 6 | 6 | 6 | 7 | 6 | 7 | 7 | 5 | 6 | 7 | 4 | 3 | 2 | 1 | 3 | 3 | 4 |
chill °C | 4 | 6 | 5 | 5 | 7 | 6 | 7 | 6 | 3 | 4 | 6 | 1 | 0 | -1 | 1 | 0 | -1 | 0 |
Humid % | 54 | 47 | 51 | 27 | 32 | 39 | 47 | 67 | 54 | 82 | 93 | 97 | 95 | 96 | 95 | 93 | 92 | 93 |
Freeze m | 2850 | 2850 | 2750 | 2550 | 2600 | 2950 | 3100 | 3000 | 2950 | 3100 | 2950 | 3150 | 2650 | 2350 | 2050 | 2800 | 2550 | 2750 |
 | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 4:38 | — | — | 4:38 | — | — | 4:37 | — | — | 4:37 | — | — | 4:36 | — | — | 4:36 | — |
Next 3 days weather summary:Some drizzle, heaviest during Sat night. Mild temperatures (max 8°C on Fri morning, min 4°C on Thu morning). Wind will be generally light. | Days 4-6 weather summary:Moderate rain (total 18.0mm), heaviest on Tue afternoon. Mild temperatures (max 8°C on Sun morning, min 1°C on Mon night). Wind will be generally light. | |||||||||||||||||
SnowPro
Hourly & 16-day forecastsView past weatherFast, ad-free browsingSnow hindcasts & HistoryAvalanche information: Japan Avalanche Network
Latest snow reports near Sun Valley (Nagano):
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 7 Nov 2026 |
| Snow Alerts | Create Alert |
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.1 | Powder days Fresh snow, limited sun, any wind. |
0.2 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Sun Valley (Nagano) at the specific elevation of 1510 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Sun Valley (Nagano). 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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