J2Ski New Zealand J2Ski logo
Facebook

Arai Snow Forecast - 20th March 2026

Arai Snow Report and Forecast

ECMWF IFS
GFS
JMA

PROSubscribe to Switch Weather Model

Updated 21 March 2026 05:42 NZDT

Snow Forecast for Arai

Snow and Weather from 20 March.

For Forecast detail, see below.

Arai Snow Forecast Highlights

When will there be fresh snow in Arai?

Arai Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (805m)
Next Snow?
There is no snow currently in the forecast for Arai.

Forecast for today in Arai

Max 14℃
Min 7℃

Valley temperatures from an overnight low of 7℃ to daytime highs around 14℃

Temperature at BaseTemp at Base

Fri
20

Snow unlikely

FairFairClearClear

Fair early, then clear sky later.

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

Partner Offers

Arai 7-Day Snow Forecast Overview

Get this snow forecast by e-mail

Summary Weather and Snow Forecast for Arai from OpenMeteo(JMA)
Fri
20
Sat
21
Sun
22
Mon
23
Tue
24
Wed
25
Thu
26
WindNE F2NE F2
1,280m
8℃
Fair
7℃
Clear
8℃
Clear
8℃
Lt Drizzle
8℃
Clear
4℃
Lt Rain
8℃
Clear
NE F2NE F2
805m
11℃
Fair
10℃
Clear
11℃
Clear
11℃
Lt Drizzle
11℃
Clear
7℃
Lt Rain
11℃
Clear
NE F2NE F2
329m
14℃
Fair
13℃
Clear
14℃
Clear
14℃
Lt Drizzle
14℃
Clear
10℃
Lt Rain
14℃
Clear
Snow Line
Max Town14℃13℃14℃14℃14℃10℃14℃
Min Town7℃3℃3℃7℃5℃8℃9℃

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.

Japan Hotels Map

 

Snow Reliability

Arai typically sees consistent snowfall throughout the winter, with average snow depths reaching up to 3 meters. For the latest snow conditions, be sure to check J2Ski for real-time information.

Understanding and predicting Snow Conditions in Arai

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