Appi Kogen 7-Day Snow Forecast

Appi Kogen Long-Range Snow Forecast Updated today

ECMWF IFS

GFS

JMA

PROSubscribe to Switch Weather Model

Updated 04 October 2026 08:51 AEDT

Long-Range Snow Forecast for Appi Kogen

Long-range (14 to 45 days) from 3 October.

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 (913m)
Next Snow Expected	14 October
Next Snow Amount	2cm
Next 48 Hours	-
Next 7 Days	-

Long-range Snow Outlook for Appi Kogen

Snowfall

Snow Line

Max 22℃
Min 5℃

Snow unlikely

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
Sat 03	Fair.	Max 15℃ Min 7℃
Sun 04	Fair at altitude, clear spells below.	Max 16℃ Min 6℃
Mon 05	Fair.	Max 19℃ Min 12℃
Tue 06	Fair.	Max 21℃ Min 14℃
Wed 07	Clear sky.	Max 17℃ Min 7℃
Thu 08	Clear sky.	Max 20℃ Min 5℃
Fri 09	Clear sky.	Max 22℃ Min 6℃

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 08:51 AEDT, next update expected 11:00 AEDT.

Ensemble forecast for Appi Kogen, Japan at 520m

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.

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.