Shiga Giant 7-Day Snow Forecast

Shiga Giant Long-Range Snow Forecast Updated today

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Updated 30 September 2026 04:46 NZDT

Long-Range Snow Forecast for Shiga Giant

Long-range (14 to 45 days) from 29 September.

For Forecast detail, see below.

Shiga Giant Snow Forecast Highlights

When will there be fresh snow in Shiga Giant?

Shiga Giant Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (1,460m)
Next Snow?
There is no snow currently in the forecast for Shiga Giant.

Long-range Snow Outlook for Shiga Giant

Snowfall

Snow Line

Max 20℃
Min 8℃

Snow unlikely

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Shiga Giant 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 Shiga Giant from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Tue 29	Light rain.	Max 12℃ Min 11℃
Wed 30	Clear spells.	Max 17℃ Min 10℃
Thu 01	Clear sky.	Max 20℃ Min 11℃
Fri 02	Clear sky.	Max 16℃ Min 9℃
Sat 03	Clear sky.	Max 17℃ Min 8℃
Sun 04	Rain showers.	Max 14℃ Min 9℃
Mon 05	Light drizzle.	Max 16℃ Min 12℃

No significant snowfall is forecast for this period.

This Snow Forecast for Shiga Giant, 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 Shiga Giant, 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.

Shiga Giant Snow Forecast updated at 04:46 NZDT, next update expected imminently.

Ensemble forecast for Shiga Giant, Japan at 1,340m

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

Snow Reliability

Shiga Giant typically enjoys reliable snow conditions, with an average snow depth of 2 to 3 meters during peak season. For the latest snow information, including current conditions and forecasts, visit J2Ski.

Off-Piste Safety in Shiga Giant

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