Next 3 days weather summary:Moderate rain (total 11.0mm), heaviest on Fri afternoon. Warm (max 25°C on Sat morning, min 16°C on Thu night). Wind will be generally light. | Days 4-6 weather summary:Light rain (total 6.0mm), mostly falling on Sun night. Warm (max 22°C on Wed morning, min 13°C on Mon night). Winds decreasing (fresh winds from the N on Sun night, calm by Tue morning). | ||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | | | | |  |  |  | |  | | | | |
t-storm risk | rain shwrs | some clouds | t-storm risk | rain shwrs | some clouds | t-storm risk | rain shwrs | some clouds | cloudy | light rain | light rain | light rain | some clouds | cloudy | cloudy | some clouds | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 2 | 1 | — | 3 | 1 | — | 3 | 1 | — | — | 2 | 2 | 1 | — | — | — | — |
max °C | 20 | 17 | 24 | 22 | 17 | 25 | 24 | 17 | 20 | 21 | 18 | 18 | 17 | 14 | 20 | 20 | 16 |
min °C | 17 | 16 | 20 | 18 | 16 | 20 | 19 | 16 | 18 | 17 | 17 | 18 | 15 | 13 | 17 | 17 | 15 |
chill °C | 17 | 16 | 20 | 18 | 16 | 20 | 19 | 16 | 17 | 16 | 16 | 17 | 13 | 11 | 17 | 17 | 15 |
Humid % | 80 | 95 | 76 | 74 | 97 | 73 | 64 | 85 | 88 | 80 | 94 | 94 | 94 | 55 | 67 | 75 | 85 |
Freeze m | 4450 | 4600 | 4600 | 4650 | 4650 | 4850 | 4700 | 4850 | 4950 | 4950 | 5450 | 5600 | 5550 | 5050 | 4700 | 4650 | 4500 |
 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — |
 | 5:57 | — | — | 5:55 | — | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — | — | 5:50 | — |
SnowPro
Hourly & 16-day forecastsView past weatherFast, ad-free browsingSnow hindcasts & HistoryAvalanche information: Japan Avalanche Network
Latest snow reports near Isshiki Kokusai:
| 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 Isshiki Kokusai at the specific elevation of 1000 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Isshiki Kokusai. 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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