Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | |  |  |  | |  | | | | | | |
mod. rain | heavy rain | heavy rain | heavy rain | light rain | light rain | light rain | some clouds | cloudy | light rain | mod. rain | light rain | heavy rain | mod. rain | heavy rain | heavy rain | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 6 | 12 | 21 | 18 | 2 | 2 | 4 | — | — | 2 | 8 | 5 | 33 | 8 | 13 | 27 |
max °C | 14 | 13 | 13 | 13 | 9 | 8 | 8 | 11 | 11 | 11 | 12 | 12 | 11 | 7 | 5 | 3 |
min °C | 12 | 13 | 13 | 9 | 9 | 8 | 7 | 9 | 11 | 11 | 12 | 12 | 7 | 6 | 4 | 2 |
chill °C | 12 | 13 | 13 | 7 | 7 | 7 | 7 | 9 | 11 | 11 | 11 | 11 | 3 | 2 | -1 | -3 |
Humid % | 65 | 91 | 98 | 93 | 84 | 87 | 87 | 72 | 75 | 82 | 87 | 90 | 94 | 87 | 92 | 95 |
Freeze m | 3200 | 3050 | 2900 | 2300 | 1800 | 1900 | 1600 | 2250 | 2600 | 2650 | 2650 | 2550 | 2100 | 1500 | 1250 | 800 |
 | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — |
 | — | — | 4:38 | — | — | 4:37 | — | — | 4:37 | — | — | 4:37 | — | — | 4:36 | — |
Next 4 days weather summary:Heavy rain (total 65.0mm), heaviest during Sun afternoon. Very mild (max 14°C on Sat night, min 7°C on Mon night). Wind will be generally light. | Days 5-7 weather summary:Heavy rain (total 128.0mm), heaviest during Wed night. Very mild (max 12°C on Wed morning, min 2°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the W by Fri afternoon). | |||||||||||||||
SnowPro
Hourly & 16-day forecastsView past weatherFast, ad-free browsingSnow hindcasts & HistoryAvalanche information: Japan Avalanche Network
Latest snow reports near Itoigawa Seaside Valley:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 7 Apr 2026 |
| Snow Alerts | Create Alert |
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. |
The above table gives the weather forecast for Itoigawa Seaside Valley at the specific elevation of 490 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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