Next 3 days weather summary:Heavy rain (total 43.0mm), heaviest during Mon morning. Very mild (max 18°C on Wed morning, min 9°C on Tue night). Wind will be generally light. | Days 4-6 weather summary:Light rain (total 8.0mm), mostly falling on Thu night. Very mild (max 14°C on Thu morning, min 3°C on Fri night). Wind will be generally light. | |||||||||||||||||
Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  |  |  |  | | | | | |  | |  |  | |
heavy rain | light rain | mod. rain | heavy rain | light rain | rain shwrs | clear | cloudy | light rain | light rain | light rain | light rain | clear | clear | clear | clear | some clouds | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 12 | 4 | 6 | 12 | 5 | 1 | — | — | 3 | 2 | 3 | 3 | — | — | — | — | — | — |
max °C | 16 | 15 | 14 | 11 | 10 | 10 | 18 | 17 | 14 | 14 | 14 | 13 | 13 | 12 | 4 | 14 | 14 | 8 |
min °C | 15 | 14 | 11 | 11 | 10 | 9 | 14 | 13 | 13 | 14 | 13 | 9 | 10 | 6 | 3 | 10 | 9 | 7 |
chill °C | 15 | 13 | 10 | 10 | 10 | 9 | 14 | 12 | 12 | 13 | 13 | 6 | 8 | 3 | 0 | 10 | 8 | 6 |
Humid % | 97 | 92 | 77 | 96 | 98 | 97 | 85 | 78 | 98 | 94 | 97 | 98 | 76 | 63 | 79 | 59 | 50 | 92 |
Freeze m | 4450 | 4400 | 4250 | 3850 | 4100 | 4300 | 4500 | 4500 | 4600 | 4600 | 4650 | 4850 | 4250 | 3700 | 3550 | 3800 | 3800 | 4050 |
 | 5:37 | — | — | 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 1400 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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