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Sun Valley (Nagano) at 1600 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 21 Jun 2026
Now
Next 3 days weather summary:Heavy rain (total 21.0mm), heaviest during Sun morning. Very mild (max 19°C on Sun afternoon, min 9°C on Tue night). Wind will be generally light. | Days 4-6 weather summary:Moderate rain (total 16.0mm), heaviest on Fri morning. Very mild (max 17°C on Fri afternoon, min 11°C on Thu night). Wind will be generally light. | |||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | | |  |  | | | | | |  | |  | |
rain shwrs | t-storm risk | light rain | light rain | light rain | light rain | rain shwrs | rain shwrs | rain shwrs | some clouds | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | mod. rain | rain shwrs | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 2 | 2 | 4 | 2 | 2 | 3 | 2 | 2 | 2 | — | 2 | 1 | 1 | 2 | 1 | 7 | 2 | — |
max °C | 18 | 19 | 15 | 14 | 14 | 11 | 14 | 13 | 11 | 16 | 16 | 12 | 13 | 13 | 13 | 15 | 17 | 14 |
min °C | 14 | 16 | 13 | 14 | 12 | 10 | 11 | 11 | 9 | 13 | 14 | 12 | 12 | 13 | 11 | 13 | 15 | 13 |
chill °C | 14 | 16 | 12 | 13 | 11 | 9 | 10 | 11 | 9 | 13 | 14 | 12 | 11 | 12 | 9 | 13 | 15 | 13 |
Humid % | 98 | 81 | 98 | 81 | 78 | 97 | 82 | 72 | 92 | 66 | 60 | 90 | 83 | 81 | 90 | 94 | 78 | 90 |
Freeze m | 4500 | 4650 | 4350 | 4250 | 4150 | 3650 | 3450 | 3550 | 3500 | 3650 | 3650 | 3800 | 3950 | 4150 | 4400 | 4350 | 4400 | 4550 |
 | 4:26 | — | — | 4:26 | — | — | 4:26 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — |
 | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — |
Days 7-16 weather summary:
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Avalanche information: Japan Avalanche Network
Popular Sun Valley (Nagano) Pages
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Latest snow reports near Sun Valley (Nagano):
Sun Valley (Nagano) Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 9 May 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of June has on average:
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
Sun Valley (Nagano) Forecast Snowfall
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Photos of Sun Valley (Nagano)
Upload new photo Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Sun Valley (Nagano) at the specific elevation of 1600 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.
Visitor Reviews of Sun Valley (Nagano)
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