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Sun Valley (Nagano) at 1420 m altitude
Issued by Snow-Forecast.com at: 8 pm (local time) / 23 Jun 2026
Now
Next 4 days weather summary:Heavy rain (total 46.0mm), heaviest during Thu morning. Very mild (max 18°C on Wed morning, min 9°C on Tue night). Wind will be generally light. | Days 5-7 weather summary:Moderate rain (total 13.0mm), heaviest on Mon morning. Very mild (max 19°C on Sun morning, min 11°C on Fri night). Wind will be generally light. | |||||||||||||||
Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  | | |  |  | | | | | | |
rain shwrs | rain shwrs | light rain | light rain | heavy rain | mod. rain | mod. rain | light rain | light rain | some clouds | some clouds | light rain | rain shwrs | some clouds | rain shwrs | rain shwrs | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 2 | 2 | 2 | 4 | 13 | 8 | 8 | 5 | 2 | — | — | 1 | 1 | — | 1 | 3 |
max °C | 11 | 18 | 17 | 12 | 12 | 12 | 13 | 14 | 14 | 12 | 18 | 17 | 13 | 19 | 19 | 14 |
min °C | 9 | 15 | 13 | 12 | 12 | 11 | 11 | 14 | 13 | 11 | 17 | 14 | 11 | 16 | 16 | 14 |
chill °C | 9 | 15 | 13 | 12 | 11 | 10 | 10 | 14 | 12 | 11 | 17 | 14 | 10 | 16 | 16 | 14 |
Humid % | 93 | 74 | 63 | 93 | 93 | 95 | 93 | 96 | 88 | 87 | 73 | 76 | 92 | 73 | 61 | 94 |
Freeze m | 3650 | 3650 | 3750 | 4000 | 4050 | 4450 | 4450 | 4500 | 4400 | 4200 | 4750 | 4650 | 4850 | 4600 | 4300 | 4250 |
 | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — | 4:28 | — | — |
 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — |
Days 7-16 weather summary:
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Avalanche information: Japan Avalanche Network
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Snow Radar
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 4 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 1420 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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