Iwanai Resort Weather (Next 3 days): The snow forecast for Iwanai Resort is: A heavy fall of snow, heaviest during Tue afternoon. Temperatures will be well below freezing (max -9°C on Mon night, min -14°C on Mon night). Winds decreasing (near gales from the WNW on Tue morning, light winds from the N by Thu afternoon).
Iwanai Resort Weather (Days 4-6): A heavy fall of snow, heaviest during Thu night. Temperatures will be well below freezing (max -8°C on Sun afternoon, min -13°C on Fri night). Winds increasing (light winds from the NW on Thu night, strong winds from the W by Sun afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -17 |  | ||||
| Middle Lift: | -14 | | ||||
| Bottom Lift: | -10 | |
Latest snow reports near Iwanai Resort:
Snow is falling at Niseko Grand Hirafu. from Niseko Grand Hirafu
It is snowing steadily in Niseko Grand Hirafu. from Niseko Grand Hirafu
Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | | | | | | | | | | | | |
heavy snow | mod. snow | heavy snow | mod. snow | light snow | mod. snow | mod. snow | light snow | light snow | heavy snow | mod. snow | light snow | mod. snow | light snow | light snow | mod. snow | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
11 | 6 | 16 | 8 | 5 | 6 | 10 | 4 | 2 | 11 | 5 | 2 | 5 | 4 | 4 | 7 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -9 | -10 | -9 | -11 | -11 | -12 | -12 | -10 | -10 | -10 | -11 | -11 | -12 | -11 | -11 | -12 |
min °C | -14 | -13 | -10 | -12 | -12 | -12 | -13 | -11 | -12 | -12 | -11 | -12 | -13 | -11 | -12 | -12 |
-26 | -26 | -22 | -21 | -21 | -20 | -20 | -17 | -17 | -16 | -20 | -19 | -19 | -18 | -20 | -19 | |
88 | 94 | 94 | 92 | 93 | 94 | 95 | 93 | 85 | 96 | 94 | 90 | 95 | 93 | 94 | 94 | |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
 | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | — | 4:32 | — | — | 4:35 | — | — | 4:36 | — | — | 4:37 | — | — | 4:37 | — |
A heavy fall of snow, heaviest during Tue afternoon. Temperatures will be well below freezing (max -9°C on Mon night, min -14°C on Mon night). Winds decreasing (near gales from the WNW on Tue morning, light winds from the N by Thu afternoon).
A heavy fall of snow, heaviest during Thu night. Temperatures will be well below freezing (max -8°C on Sun afternoon, min -13°C on Fri night). Winds increasing (light winds from the NW on Thu night, strong winds from the W by Sun afternoon).
Latest snow reports near Iwanai Resort:
Snow is falling at Niseko Grand Hirafu. from Niseko Grand Hirafu
It is snowing steadily in Niseko Grand Hirafu. from Niseko Grand Hirafu
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 21 cm |
| Last snowfall: | 18 Jan 2026 |
| Snow Alerts | Create Alert |
1.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
4.3 | Powder days Fresh snow, limited sun, any wind. |
0.3 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Iwanai Resort at the specific elevation of 764 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Iwanai Resort. 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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