Numajiri Snow Report and Forecast
Snow Forecast for Numajiri
When will there be fresh snow?
This is the Snow Forecast for Numajiri, Japan for 16 days from 17 April.
Updated 17 April 2025 09:36 PDT.
| Next Snow? | |
|---|---|
| There is no snow currently in the forecast for Numajiri. | |
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For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Numajiri.
Forecast for today in Numajiri
Max 58°F
Min 46°F
Valley temperatures from an overnight low of 46°F to daytime highs around 58°F
Temperature at BaseTemp at Base
Thu
17
Snow unlikely
Clear sky early, then cloudy later.
Numajiri has no new snow forecast in the next 48 hours.
Numajiri Snow Report
| Upper Snow Depths |
| - |
| Lower Snow Depths |
| - |
| Snow Conditions |
| - |
Numajiri 7-Day Snow Forecast Overview
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| Thu 17 | Fri 18 | Sat 19 | Sun 20 | Mon 21 | Tue 22 | Wed 23 | |
|---|---|---|---|---|---|---|---|
| Wind | W F2 | NW F2 | SW F3 | ||||
| 4,003ft | 58°F
| 65°F
 | 59°F
 | 63°F
| 54°F
| 64°F
 | 56°F
 |
| NW F2 | NW F2 | SW F3 | |||||
| 3,396ft | 58°F
| 65°F
| 59°F
| 64°F
| 57°F
| 66°F
| 59°F
|
| W F2 | NW F2 | SW F2 | |||||
| 2,789ft | 58°F
| 65°F
| 59°F
| 63°F
| 58°F
| 67°F
| 59°F
|
| Snow Line | |||||||
| Max Town | 58°F | 65°F | 59°F | 63°F | 58°F | 67°F | 59°F |
| Min Town | 46°F | 46°F | 51°F | 41°F | 45°F | 53°F | 49°F |
This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.
Numajiri Medium-Range (7-Day) Snow Forecast Detail
Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.
Max 58°F
Min 46°F
Valley temperatures from an overnight low of 46°F to daytime highs around 58°F
Temperature at BaseTemp at Base
Thu
17
Snow unlikely
Clear sky early, then cloudy later.
Max 65°F
Min 46°F
Valley temperatures from an overnight low of 46°F to daytime highs around 65°F
Temperature at BaseTemp at Base
Fri
18
Snow unlikely
Clear spells first, clear sky then rain showers, fair later.
Max 59°F
Min 51°F
Valley temperatures from an overnight low of 51°F to daytime highs around 59°F
Temperature at BaseTemp at Base
Sat
19
Snow unlikely
Clear sky first, fair then clear spells, cloudy later.
Max 63°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 63°F
Temperature at BaseTemp at Base
Sun
20
Snow unlikely
Light drizzle first, cloudy then clear sky, fair later.
Max 58°F
Min 45°F
Valley temperatures from an overnight low of 45°F to daytime highs around 58°F
Temperature at BaseTemp at Base
Mon
21
Snow unlikely
Fair first, cloudy then clear spells, cloudy later.
Max 67°F
Min 53°F
Valley temperatures from an overnight low of 53°F to daytime highs around 67°F
Temperature at BaseTemp at Base
Tue
22
Snow unlikely
Clear sky, cloudy, light rain later.
Max 59°F
Min 49°F
Valley temperatures from an overnight low of 49°F to daytime highs around 59°F
Temperature at BaseTemp at Base
Wed
23
Snow unlikely
Light rain early, then cloudy later.
No significant snowfall is forecast for this period.
This Snow Forecast for Numajiri, Japan gives the predicted Snowfall and Freezing Levels for the next week.
The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Numajiri, on any given trail or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.
Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.
Numajiri Snow Forecast updated at 09:36 PDT, next update expected imminently.
Understanding and predicting Snow Conditions in Numajiri
Here are our tips for making the most of a trip to Numajiri, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Numajiri, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.
Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:
Pistes (Groomers) or Off-Piste
These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.
- Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
- Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.
WARNING - skiing off-piste (out-of-bounds) at Numajiri is uncontrolled and un-marked slopes are not made safe (from avalanche risk) or patrolled. Always check local advice, know the Avalanche Risk Level, ski with safety kit (and know how to use it), and never ski alone.
Analyzing Weather and Snowfall Forecasts
Whilst no forecast can tell you exactly how snow conditions in Numajiri will develop, checking the forecast regularly should give you an idea of what to expect.
New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.
Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.
Predicting Future Snow Quality
Regularly check our snow and weather forecasts for Numajiri for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.
Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.