Shiga Ichinose Diamond 7-Day Snow Forecast

Shiga Ichinose Diamond Long-Range Snow Forecast Updated today

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Updated 12 June 2026 04:41 BST

Long-Range Snow Forecast for Shiga Ichinose Diamond

Long-range (14 to 45 days) from 12 June.

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 (1,655m)
Next Snow?
There is no snow currently in the forecast for Shiga Ichinose Diamond.

Long-range Snow Outlook for Shiga Ichinose Diamond

Snowfall

Snow Line

Max 20℃ 68°F
Min 8℃ 46°F

Snow unlikely

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
Fri 12	Clear sky.	Max 19℃ 66°F Min 11℃ 51°F
Sat 13	Clear sky.	Max 20℃ 68°F Min 8℃ 46°F
Sun 14	Cloudy.	Max 18℃ 65°F Min 9℃ 48°F
Mon 15	Cloudy.	Max 13℃ 55°F Min 9℃ 48°F
Tue 16	Clear sky.	Max 17℃ 63°F Min 8℃ 46°F
Wed 17	Cloudy.	Max 17℃ 63°F Min 8℃ 46°F
Thu 18	Cloudy.	Max 16℃ 61°F Min 9℃ 49°F

No significant snowfall is forecast for this period.

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 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 Ichinose Diamond Snow Forecast updated at 04:41 BST, next update expected 10:00 BST.

Ensemble forecast for Shiga Ichinose Diamond, Japan at 1,600m

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 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.