Appi Kogen 7-Day Snow Forecast

Appi Kogen Long-Range Snow Forecast Updated today

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Updated 12 November 2026 19:42 PST

Long-Range Snow Forecast for Appi Kogen

Long-range (14 to 45 days) from 13 November.

For Forecast detail, see below.

Appi Kogen Snow Forecast Highlights

When will there be fresh snow in Appi Kogen?

Appi Kogen Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (2,994ft)
Next Snow Expected	19 November
Next Snow Amount	2in
Next 48 Hours	-
Next 7 Days	3in

Long-range Snow Outlook for Appi Kogen

Snowfall

Snow Line

Max 58°F
Min 28°F

3in New Snow

Snow Line from 3,222ft to resort level (1,706ft).

Appi 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 Appi Kogen from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Fri 13	Fair.	Max 57°F Min 50°F
Sat 14	Clear sky at altitude, fair below.	Max 58°F Min 45°F
Sun 15	Light drizzle.	Max 51°F Min 47°F
Mon 16	Cloudy.	Max 48°F Min 31°F
Tue 17	Fair.	Max 43°F Min 28°F
Wed 18	Light snow at altitude, drizzle below.	Max 58°F Min 30°F
Thu 19	up to 3in New Snow Heavy snow showers at altitude, light rain below. Snow Line from 3,222ft to resort level (1,706ft).	Max 45°F Min 33°F

This Snow Forecast for Appi 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 Appi Kogen, 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.

Appi Kogen Snow Forecast updated at 19:42 PST, next update expected 22:00 PST.

Ensemble forecast for Appi Kogen, Japan at 1,706ft

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.

Japan Accommodation (Apartments, Chalets, Hotels) Map

How reliable is the snow in Appi Kogen?

Appi Kogen is known for its reliable snow conditions, typically featuring a snow depth of 2 to 3 meters. Regular snowfall throughout the season ensures excellent skiing, but it's advisable to check the latest snow information on J2Ski.

Off-Piste Safety in Appi Kogen

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