Next 3 days weather summary:Heavy rain (total 51.0mm), heaviest during Thu morning. Very mild (max 17°C on Tue morning, min 12°C on Wed night). Wind will be generally light. | Days 4-6 weather summary:Moderate rain (total 16.0mm), heaviest on Fri afternoon. Very mild (max 17°C on Sat afternoon, min 12°C on Fri night). Wind will be generally light. | |||||||||||||||||
Tuesday 30 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | | | | |  |  | | | | |  | |
rain shwrs | t-storm risk | rain shwrs | light rain | t-storm risk | heavy rain | heavy rain | light rain | rain shwrs | rain shwrs | light rain | light rain | some clouds | rain shwrs | light rain | light rain | rain shwrs | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1 | 3 | 3 | 1 | 3 | 15 | 20 | 2 | 3 | 3 | 5 | 1 | — | 2 | 1 | 2 | 2 | — |
max °C | 17 | 17 | 15 | 16 | 16 | 14 | 13 | 14 | 14 | 16 | 15 | 13 | 16 | 17 | 14 | 14 | 14 | 13 |
min °C | 15 | 15 | 14 | 15 | 15 | 12 | 12 | 14 | 13 | 14 | 13 | 12 | 14 | 15 | 13 | 14 | 13 | 13 |
chill °C | 15 | 15 | 14 | 15 | 15 | 10 | 10 | 13 | 12 | 14 | 13 | 12 | 14 | 15 | 13 | 14 | 12 | 12 |
Humid % | 73 | 69 | 85 | 80 | 72 | 92 | 99 | 99 | 91 | 86 | 85 | 93 | 75 | 68 | 93 | 90 | 93 | 91 |
Freeze m | 4250 | 4250 | 4300 | 4350 | 4550 | 4350 | 4700 | 4900 | 4650 | 4400 | 4400 | 4300 | 4400 | 4300 | 4550 | 4600 | 4600 | 4650 |
 | 4:31 | — | — | 4:31 | — | — | 4:33 | — | — | 4:33 | — | — | 4:33 | — | — | 4:33 | — | — |
 | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — |
SnowProGo pro and carve into:
Avalanche 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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