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Itoigawa Seaside Valley Weather (Next 3 days): The snow forecast for Itoigawa Seaside Valley is: A heavy fall of snow, heaviest during Sun afternoon. Becoming milder with light rain (total 4.0mm) on Tue morning. Freeze-thaw conditions (max 2°C on Tue morning, min -6°C on Sun night). Winds decreasing (strong winds from the WNW on Sun night, light winds from the SW by Mon afternoon).
Itoigawa Seaside Valley Weather (Days 4-6): A light covering of new snow, mostly falling on Wed morning. Becoming milder with moderate rain (total 12.0mm) heaviest on Thu afternoon. Freeze-thaw conditions (max 4°C on Thu afternoon, min -5°C on Wed night). Winds decreasing (fresh winds from the SW on Thu night, calm by Fri night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 2 |  | ||||
| Middle Lift: | 3 |  | ||||
| Bottom Lift: | 5 | |
Latest snow reports near Itoigawa Seaside Valley:
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
Continuous light rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | |  |  |  | | |  | | |  |  |  | | |  | |
snow shwrs | heavy snow | heavy snow | snow shwrs | clear | snow shwrs | light snow | light snow | heavy snow | mod. snow | light snow | snow shwrs | cloudy | light rain | rain shwrs | light rain | light rain | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
4 | 23 | 24 | 2 | — | — | 1 | 4 | 14 | 6 | 3 | — | — | — | — | — | — | — | |
— | — | — | — | — | — | 4 | — | — | — | — | — | — | 3 | 6 | 2 | 1 | — | |
max °C | -2 | -4 | -6 | -4 | -2 | 0 | 2 | 2 | -1 | -2 | -2 | -1 | 3 | 4 | 4 | 2 | 2 | 1 |
min °C | -2 | -5 | -6 | -5 | -3 | -2 | 2 | 0 | -3 | -3 | -3 | -5 | 2 | 4 | 2 | 2 | 1 | 0 |
-10 | -14 | -16 | -12 | -8 | -7 | -3 | -6 | -9 | -8 | -9 | -11 | -1 | 0 | -3 | -3 | -1 | -2 | |
84 | 93 | 90 | 90 | 69 | 63 | 86 | 94 | 94 | 95 | 90 | 74 | 62 | 72 | 91 | 93 | 92 | 54 | |
450 | 150 | 0 | 0 | 500 | 450 | 1050 | 1000 | 200 | 350 | 450 | 0 | 1050 | 1500 | 1450 | 1100 | 1050 | 1050 | |
 | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — |
 | — | 4:50 | — | — | 4:51 | — | — | 4:52 | — | — | 4:52 | — | — | 4:53 | — | — | 4:54 | — |
A heavy fall of snow, heaviest during Sun afternoon. Becoming milder with light rain (total 4.0mm) on Tue morning. Freeze-thaw conditions (max 2°C on Tue morning, min -6°C on Sun night). Winds decreasing (strong winds from the WNW on Sun night, light winds from the SW by Mon afternoon).
A light covering of new snow, mostly falling on Wed morning. Becoming milder with moderate rain (total 12.0mm) heaviest on Thu afternoon. Freeze-thaw conditions (max 4°C on Thu afternoon, min -5°C on Wed night). Winds decreasing (fresh winds from the SW on Thu night, calm by Fri night).
Latest snow reports near Itoigawa Seaside Valley:
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
Continuous light rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 5 cm |
| Last snowfall: | 10 Jan 2026 |
| Snow Alerts | Create Alert |
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
3.3 | Powder days Fresh snow, limited sun, any wind. |
0.5 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Itoigawa Seaside Valley at the specific elevation of 740 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Itoigawa Seaside Valley. 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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