Next 3 days weather summary:Moderate rain (total 14.0mm), heaviest on Wed night. Warm (max 23°C on Wed morning, min 16°C on Thu night). Wind will be generally light. | Days 4-6 weather summary:Heavy rain (total 40.0mm), heaviest during Sun night. Warm (max 21°C on Fri morning, min 16°C on Fri night). Wind will be generally light. | |||||||||||||||||
Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | |  | |  |  |  | | | | |  | |
rain shwrs | some clouds | clear | clear | rain shwrs | mod. rain | light rain | light rain | some clouds | some clouds | cloudy | light rain | mod. rain | light rain | light rain | light rain | light rain | heavy rain | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1 | — | — | — | 2 | 7 | 2 | 2 | — | — | — | 4 | 8 | 3 | 3 | 1 | 5 | 16 |
max °C | 20 | 20 | 17 | 23 | 22 | 20 | 20 | 20 | 18 | 21 | 20 | 18 | 16 | 17 | 17 | 20 | 19 | 18 |
min °C | 19 | 18 | 17 | 21 | 20 | 19 | 19 | 18 | 16 | 20 | 18 | 16 | 16 | 17 | 17 | 19 | 18 | 17 |
chill °C | 19 | 18 | 17 | 21 | 20 | 19 | 19 | 18 | 16 | 20 | 18 | 16 | 16 | 17 | 17 | 19 | 18 | 17 |
Humid % | 85 | 74 | 76 | 66 | 78 | 93 | 95 | 87 | 72 | 53 | 72 | 80 | 91 | 90 | 92 | 87 | 90 | 92 |
Freeze m | 4950 | 4900 | 4750 | 4500 | 4350 | 4250 | 4350 | 4350 | 4150 | 4000 | 4050 | 3950 | 3350 | 3650 | 3750 | 3900 | 3950 | 3850 |
 | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:43 | — | — | 5:42 | — | — | 5:39 | — | — | 5:37 | — |
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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