Numajiri Snow Report and Forecast
Updated 19 May 2026 16:41 UTC
Snow Forecast for Numajiri
Snow and Weather from 19 May.
For Forecast detail, see below.
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Numajiri Snow Forecast Highlights
When will there be fresh snow in Numajiri?
| Next Snow? | |
|---|---|
| There is no snow currently in the forecast for Numajiri. |
Forecast for today in Numajiri
Max 26℃ 78°F
Min 16℃ 60°F
Valley temperatures from an overnight low of 16℃ 60°F to daytime highs around 26℃ 78°F
Temperature at BaseTemp at Base
Tue
19
Snow unlikely
Fair, clear sky, cloudy later.
Forecast times for Numajiri are in Tokyo (Asia/Tokyo) time zone.
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| Tue 19 | Wed 20 | Thu 21 | Fri 22 | Sat 23 | Sun 24 | Mon 25 | |
|---|---|---|---|---|---|---|---|
| Wind | NE F2 | E F3 | SE F2 | ||||
| 1,220m 4,003ft | 23℃ 74°F
| 21℃ 69°F
| 11℃ 52°F
 | 9℃ 48°F
 | 15℃ 58°F
| 19℃ 67°F
 | 21℃ 69°F
|
| NE F2 | E F3 | SE F2 | |||||
| 1,035m 3,396ft | 25℃ 76°F
| 22℃ 71°F
| 13℃ 54°F
| 10℃ 50°F
| 16℃ 60°F
| 21℃ 69°F
| 22℃ 72°F
|
| NE F2 | E F3 | SE F2 | |||||
| 850m 2,789ft | 26℃ 78°F
| 23℃ 73°F
| 14℃ 57°F
| 11℃ 52°F
| 17℃ 62°F
| 22℃ 71°F
| 23℃ 74°F
|
| Snow Line | |||||||
| Max Town | 26℃ 78°F | 23℃ 73°F | 14℃ 57°F | 11℃ 52°F | 17℃ 62°F | 22℃ 71°F | 23℃ 74°F |
| Min Town | 16℃ 60°F | 13℃ 56°F | 8℃ 46°F | 5℃ 40°F | 4℃ 39°F | 7℃ 45°F | 12℃ 53°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.
Snow Reliability
Numajiri enjoys a consistent snow cover, with average snow depths reaching up to 2 meters during peak season. For the latest snow conditions, check J2Ski for reliable updates.
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.