Geto Kogen 7-Day Snow Forecast

Geto Kogen Long-Range Snow Forecast Updated today

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Updated 21 March 2026 05:40 NZDT

Long-Range Snow Forecast for Geto Kogen

Long-range (14 to 45 days) from 20 March.

For Forecast detail, see below.

Geto Kogen Snow Forecast Highlights

When will there be fresh snow in Geto Kogen?

Geto Kogen Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (855m)
Next Snow Expected	20 March
Next Snow Amount	5cm
Next 48 Hours	10cm
Next 7 Days	10cm

Long-range Snow Outlook for Geto Kogen

Snowfall

Snow Line

Max 11℃
Min -5℃

10cm New Snow

Snow falling to resort level (640m).

Powder Alert!

Powder Alarm issued 21 March 2026 10:48 NZDT

Powder Possible :- 10cm of Fresh Snow is forecast for Geto Kogen over the next 2 days.

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Geto 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 Geto Kogen from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Fri 20	4cm to 5cm New Snow Snow showers. Snow falling to resort level (640m).	Max 7℃ Min -3℃
Sat 21	5cm to 6cm New Snow Light snow at altitude, rain showers below. Snow falling to resort level (640m).	Max -1℃ Min -5℃
Sun 22	Clear sky.	Max 8℃ Min -2℃
Mon 23	Fair at altitude, light rain showers below.	Max 11℃ Min 1℃
Tue 24	Clear sky.	Max 8℃ Min -3℃
Wed 25	Light drizzle.	Max 7℃ Min -4℃
Thu 26	Light drizzle.	Max 9℃ Min 4℃

This Snow Forecast for Geto 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 Geto 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.

Geto Kogen Snow Forecast updated at 05:40 NZDT, next update expected imminently.

Ensemble forecast for Geto Kogen, Japan at 640m

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 Hotels Map

Snow Reliability

Geto Kogen enjoys reliable snow conditions, typically boasting a snow depth of 2 to 3 meters during peak season. Snowfall is consistent, but for the latest updates, check J2Ski for current snow conditions.

Off-Piste Safety in Geto Kogen

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