Next 3 days weather summary:Heavy rain (total 47.0mm), heaviest during Mon night. Very mild (max 15°C on Wed morning, min 10°C on Mon night). Wind will be generally light. | Days 4-6 weather summary:Some drizzle, heaviest during Thu afternoon. Very mild (max 15°C on Thu afternoon, min 6°C on Fri night). Wind will be generally light. | ||||||||||||||||
Mon 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  |  |  |  |  |  | | | | |  | | |
mod. rain | heavy rain | heavy rain | mod. rain | rain shwrs | clear | some clouds | cloudy | light rain | rain shwrs | some clouds | clear | clear | some clouds | some clouds | cloudy | cloudy | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 6 | 14 | 15 | 8 | 1 | — | — | — | 3 | 1 | — | — | — | — | — | — | — |
max °C | 14 | 12 | 10 | 10 | 10 | 15 | 15 | 13 | 14 | 15 | 12 | 11 | 12 | 6 | 11 | 12 | 8 |
min °C | 12 | 10 | 10 | 10 | 10 | 12 | 13 | 12 | 13 | 14 | 9 | 9 | 7 | 6 | 8 | 9 | 8 |
chill °C | 10 | 9 | 8 | 8 | 9 | 12 | 12 | 11 | 12 | 13 | 6 | 6 | 5 | 4 | 7 | 9 | 7 |
Humid % | 88 | 80 | 97 | 90 | 78 | 71 | 59 | 93 | 98 | 82 | 80 | 62 | 48 | 69 | 61 | 50 | 83 |
Freeze m | 4450 | 4250 | 4000 | 4200 | 4400 | 4550 | 4650 | 4550 | 4650 | 4850 | 4500 | 4050 | 3550 | 3550 | 3650 | 3750 | 3900 |
 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — |
 | 5:35 | — | — | 5:34 | — | — | 5:31 | — | — | 5:30 | — | — | 5:29 | — | — | 5:28 | — |
SnowPro
Hourly & 16-day forecastsView past weatherFast, ad-free browsingSnow hindcasts & HistoryAvalanche information: Japan Avalanche Network
Latest snow reports near Koumi Riekkusu Ski 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 Koumi Riekkusu Ski Valley at the specific elevation of 1780 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Koumi Riekkusu Ski 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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