Adatara Kogen 7-Day Snow Forecast

Adatara Kogen Long-Range Snow Forecast Updated today

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Updated 11 June 2026 22:41 CDT

Long-Range Snow Forecast for Adatara Kogen

Long-range (14 to 45 days) from 12 June.

For Forecast detail, see below.

Adatara Kogen Snow Forecast Highlights

When will there be fresh snow in Adatara Kogen?

Adatara Kogen Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (1,150m)
Next Snow?
There is no snow currently in the forecast for Adatara Kogen.

Long-range Snow Outlook for Adatara Kogen

Snowfall

Snow Line

Max 25℃
Min 8℃

Snow unlikely

Adatara Kogen Long-Range (2 weeks+) Snow Forecast Outlook

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.

16 Day Weather and Snow Forecast for Adatara Kogen from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Fri 12	Clear sky.	Max 17℃ Min 12℃
Sat 13	Clear sky.	Max 21℃ Min 11℃
Sun 14	Clear sky.	Max 23℃ Min 12℃
Mon 15	Cloudy.	Max 17℃ Min 10℃
Tue 16	Clear sky.	Max 21℃ Min 8℃
Wed 17	Clear spells.	Max 25℃ Min 8℃
Thu 18	Fair.	Max 25℃ Min 12℃

No significant snowfall is forecast for this period.

This Snow Forecast for Adatara Kogen, 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 Adatara Kogen, on any given piste 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.

Adatara Kogen Snow Forecast updated at 22:41 CDT, next update expected 04:00 CDT.

Ensemble forecast for Adatara Kogen, Japan at 950m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Snow Reliability

Adatara Kogen typically enjoys reliable snow conditions, with an average snow depth of around 1.5 meters during peak season. For the latest snow information, including snowfall updates, check J2Ski.

Off-Piste Safety in Adatara Kogen

Before skiing or snowboarding off-piste in Adatara Kogen, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.