Iwappara Snow Report and Forecast
Snow Forecast for Iwappara
When will there be fresh snow?
This is the Snow Forecast for Iwappara, Japan for 15 days from 26 March.
Updated 25 March 2025 15:34 PDT.
| Next Snow Expected | 30 March |
|---|---|
| Next Snow Amount | 2in |
| Next 48 Hours | - |
| Next 7 Days | 3in |
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For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Iwappara.
Forecast for today in Iwappara
Max 54°F
Min 38°F
Valley temperatures from an overnight low of 38°F to daytime highs around 54°F
Temperature at BaseTemp at Base
Wed
26
Snow unlikely
Clear spells, fair, clear sky later.
Iwappara has very light new snow forecast in the next 48 hours.
Iwappara Snow Report
| Upper Snow Depths |
| - |
| Lower Snow Depths |
| - |
| Snow Conditions |
| - |
Iwappara 7-Day Snow Forecast Overview
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| Wed 26 | Thu 27 | Fri 28 | Sat 29 | Sun 30 | Mon 31 | Tue 01 | |
|---|---|---|---|---|---|---|---|
| Wind | NW F3 | SW F2 | SW F2 | ||||
| 3,232ft | 54°F
| 67°F
| 53°F
 | 36°F
 | 31°F
+3in
| 32°F
| 38°F
|
| NW F2 | |||||||
| 2,272ft | 54°F
| 67°F
| 53°F
| 41°F
| 33°F
 +2in
| 37°F
| 43°F
 |
| W F2 | |||||||
| 1,312ft | 54°F
| 67°F
| 53°F
| 44°F
| 38°F
+1in
| 38°F
| 49°F
|
| Snow Line | varying 1,539ft | varying 1,703ft | varying 1,473ft | 1,312ft | |||
| Max Town | 54°F | 67°F | 53°F | 44°F | 38°F | 38°F | 49°F |
| Min Town | 38°F | 56°F | 33°F | 34°F | 29°F | 30°F | 40°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.
Iwappara 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 54°F
Min 38°F
Valley temperatures from an overnight low of 38°F to daytime highs around 54°F
Temperature at BaseTemp at Base
Wed
26
Snow unlikely
Clear spells, fair, clear sky later.
Max 67°F
Min 56°F
Valley temperatures from an overnight low of 56°F to daytime highs around 67°F
Temperature at BaseTemp at Base
Thu
27
Snow unlikely
Clear sky, clear spells, rain showers later.
Max 53°F
Min 33°F
Valley temperatures from an overnight low of 33°F to daytime highs around 53°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Fri
28
Snow unlikely
Cloudy, drizzle, clear spells later.
Max 44°F
Min 34°F
Valley temperatures from an overnight low of 34°F to daytime highs around 44°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sat
29
New Snow
Cloudy.
Snow Line from 1,703ft to resort level.
Max 38°F
Min 29°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 29°F and rising to 38°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sun
30
1in to 3in New Snow
Light snow, light snow showers, snow showers later.
Snow Line from 1,473ft to resort level.
Max 38°F
Min 30°F
Valley temperatures from an overnight low of 30°F to daytime highs around 38°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
31
New Snow
Light snow first, clear sky then clear spells, cloudy later.
Snow falling to resort level.
Max 49°F
Min 40°F
Valley temperatures from an overnight low of 40°F to daytime highs around 49°F
Temperature at BaseTemp at Base
Tue
01
Snow unlikely
Cloudy first, light rain then rain showers, cloudy later.
This Snow Forecast for Iwappara, 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 Iwappara, 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.
Iwappara Snow Forecast updated at 15:34 PDT, next update expected 21:00 PDT.
Snow Forecast near Iwappara
| Snow Report and Forecast | 48 Hr | Wed | Thu | Fri | Sat | Sun | Mon | Tue | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Kagura | 1in | 5in | |||||||
| Naeba | - | 4in | |||||||
| Kawaba | - | 4in | |||||||
| Yuzawa Kogen | - | 2in | |||||||
| Yuzawa Nakazato | - | 2in | |||||||
| Yuzawa ParK | - | 2in | |||||||
| Ipponsugi | - | 1in |
Understanding and predicting Snow Conditions in Iwappara
Here are our tips for making the most of a trip to Iwappara, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Iwappara, 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 Iwappara 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 Iwappara 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 Iwappara 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.