New €155m Les Grands Montets Lift Begins Opening This Winter
Closed since the devastating 2018 fire, the first part of the flagship new Grands Montets lift above Argentière in the Chamonix Valley is set to open this December.
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Koba World at 430 m altitude
Issued by Snow-Forecast.com at: 2 am (local time) / 20 Sep 2026
Next 3 days weather summary:Light rain (total 5.0mm), mostly falling on Sun morning. Warm (max 21°C on Mon morning, min 12°C on Tue night). Wind will be generally light. | Days 4-6 weather summary:Light rain (total 3.0mm), mostly falling on Wed night. Warm (max 22°C on Fri morning, min 12°C on Wed night). Wind will be generally light. | |||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | | |  | | | | | | |  | |  | |
light rain | rain shwrs | some clouds | some clouds | clear | some clouds | clear | some clouds | rain shwrs | clear | clear | rain shwrs | clear | clear | some clouds | cloudy | cloudy | light rain | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1 | 2 | — | — | — | — | — | — | 2 | — | — | 1 | — | — | — | — | — | 2 |
max °C | 18 | 18 | 17 | 21 | 21 | 17 | 20 | 18 | 15 | 17 | 17 | 13 | 18 | 17 | 15 | 22 | 21 | 16 |
min °C | 17 | 17 | 16 | 19 | 17 | 16 | 19 | 16 | 12 | 15 | 14 | 12 | 16 | 14 | 13 | 19 | 17 | 15 |
chill °C | 17 | 17 | 16 | 19 | 17 | 16 | 19 | 15 | 11 | 14 | 13 | 11 | 16 | 14 | 13 | 19 | 17 | 15 |
Humid % | 92 | 87 | 86 | 61 | 65 | 68 | 63 | 69 | 81 | 62 | 57 | 72 | 62 | 41 | 52 | 53 | 53 | 86 |
Freeze m | 4050 | 4150 | 4150 | 4000 | 4150 | 4200 | 3950 | 3800 | 3700 | 3300 | 3250 | 3100 | 3200 | 3350 | 3450 | 3400 | 3400 | 3300 |
 | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — |
 | — | 5:37 | — | — | 5:35 | — | — | 5:32 | — | — | 5:30 | — | — | 5:30 | — | — | 5:28 | — |
Days 7-16 weather summary:
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Avalanche information: Japan Avalanche Network
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Snow Radar
Latest snow reports near Koba World:
Koba World Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 4 May 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hokkaido are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of September has on average:
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. |
Koba World Forecast Snowfall
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Other resorts in Japan - Hokkaido are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Koba World at the specific elevation of 430 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Koba World. 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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