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Ajigasawa Snow Forecast - 11th August 2026

Ajigasawa Snow Report and Forecast

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JMA

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Updated 12 August 2026 07:45 AEST

Snow Forecast for Ajigasawa

Snow and Weather from 11 August.

For Forecast detail, see below.

Ajigasawa Snow Forecast Highlights

When will there be fresh snow in Ajigasawa?

Ajigasawa Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (659m)
Next Snow?
There is no snow currently in the forecast for Ajigasawa.

Forecast for today in Ajigasawa

Max 21℃
Min 19℃

Valley temperatures from an overnight low of 19℃ to daytime highs around 21℃

Temperature at BaseTemp at Base

Tue
11

Snow unlikely

MixedShwrsFairFair

Clear spells, rain showers, fair later.

Forecast times for Ajigasawa are in Tokyo (Asia/Tokyo) time zone.

Ajigasawa 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Ajigasawa from OpenMeteo(JMA)
Tue
11
Wed
12
Thu
13
Fri
14
Sat
15
Sun
16
Mon
17
WindNE F2E F2E F4E F4E F5
921m
18℃
Lt Rain
24℃
Fair
26℃
Fair
25℃
Fair
21℃
Clear
20℃
Clear
19℃
Clear
NE F2E F2E F4E F4E F5
659m
19℃
Lt Rain
25℃
Fair
27℃
Fair
27℃
Fair
23℃
Clear
22℃
Clear
21℃
Clear
NE F2E F2E F4E F4E F5
396m
21℃
Lt Rain
27℃
Fair
29℃
Fair
29℃
Fair
24℃
Clear
23℃
Clear
22℃
Clear
Snow Line
Max Town21℃27℃29℃29℃24℃23℃22℃
Min Town19℃20℃21℃21℃21℃21℃20℃

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

Ajigasawa typically enjoys reliable snow conditions, with average snow depths of around 3 to 4 meters throughout the season. For the latest snow conditions, check J2Ski for up-to-date information.

Understanding and predicting Snow Conditions in Ajigasawa

Here are our tips for making the most of a trip to Ajigasawa, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Ajigasawa, 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 Ajigasawa 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 Ajigasawa 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 Ajigasawa 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.