Shiga Giant 7-Day Snow Forecast

Shiga Giant Long-Range Snow Forecast Updated today

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Updated 21 March 2026 11:42 NZDT

Long-Range Snow Forecast for Shiga Giant

Long-range (14 to 45 days) from 21 March.

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 Expected	23 March
Next Snow Amount	5cm
Next 48 Hours	5cm
Next 7 Days	5cm

Long-range Snow Outlook for Shiga Giant

Snowfall

Snow Line

Max 11℃
Min -5℃

5cm New Snow

Snow falling to resort level (1,340m).

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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
Sat 21	Clear sky.	Max 5℃ Min -5℃
Sun 22	Fair.	Max 8℃ Min -5℃
Mon 23	2cm to 5cm New Snow Snow showers at altitude, rain showers below. Snow falling to resort level (1,340m).	Max 8℃ Min 0℃
Tue 24	Cloudy.	Max 7℃ Min 0℃
Wed 25	Light snow.	Max 6℃ Min 0℃
Thu 26	Rain showers.	Max 6℃ Min 0℃
Fri 27	Cloudy.	Max 11℃ Min -2℃

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 11:42 NZDT, next update expected 17:00 NZDT.

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.

Snow Forecast near Shiga Giant

Snow Forecasts for Ski Resorts near Shiga Giant
Ski Area	48 Hr	7 Day
Shiga Higashitateyama	5cm	8cm
Shiga Okusiga Kogen	5cm	8cm
Shiga Yakebitaiyama	5cm	8cm
Shiga Hasuike	5cm	5cm
Shiga Hoppo Bunadaira	5cm	5cm
Shiga Ichinose Diamond	5cm	5cm
Shiga Maruike	5cm	5cm

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.