Shiga Ichinose Diamond 7-Day Snow Forecast

Shiga Ichinose Diamond Long-Range Snow Forecast Updated today

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Updated 20 March 2026 15:41 PDT

Long-Range Snow Forecast for Shiga Ichinose Diamond

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

For Forecast detail, see below.

Shiga Ichinose Diamond Snow Forecast Highlights

When will there be fresh snow in Shiga Ichinose Diamond?

Shiga Ichinose Diamond Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (5,430ft)
Next Snow Expected	23 March
Next Snow Amount	2in
Next 48 Hours	2in
Next 7 Days	2in

Long-range Snow Outlook for Shiga Ichinose Diamond

Snowfall

Snow Line

Max 49°F
Min 20°F

2in New Snow

Snow falling to resort level (5,249ft).

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Shiga Ichinose Diamond 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 Ichinose Diamond from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Sat 21	Clear sky.	Max 37°F Min 21°F
Sun 22	Fair.	Max 43°F Min 20°F
Mon 23	2in New Snow Snow showers. Snow falling to resort level (5,249ft).	Max 44°F Min 29°F
Tue 24	Cloudy.	Max 41°F Min 28°F
Wed 25	Light snow.	Max 39°F Min 29°F
Thu 26	Rain showers.	Max 40°F Min 29°F
Fri 27	Cloudy.	Max 49°F Min 26°F

This Snow Forecast for Shiga Ichinose Diamond, 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 Ichinose Diamond, 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.

Shiga Ichinose Diamond Snow Forecast updated at 15:41 PDT, next update expected imminently.

Ensemble forecast for Shiga Ichinose Diamond, Japan at 5,249ft

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.

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Snow Forecast near Shiga Ichinose Diamond

Snow Forecasts for Ski Resorts near Shiga Ichinose Diamond
Ski Area	48 Hr	7 Day
Shiga Higashitateyama	2in	3in
Shiga Okusiga Kogen	2in	6in
Shiga Yakebitaiyama	2in	6in
Shiga Giant	2in	2in
Shiga Hasuike	2in	2in
Shiga Hoppo Bunadaira	2in	2in
Shiga Maruike	2in	2in

Snow Reliability

Shiga Ichinose Diamond typically enjoys consistent snowfall throughout the season, with snow depths averaging around 2 meters. For the latest snow conditions, including snowfall updates, check J2Ski for reliable information.

Off-Piste Safety in Shiga Ichinose Diamond

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