Kusatsu Onsen 7-Day Snow Forecast

Kusatsu Onsen Long-Range Snow Forecast Updated today

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Updated 23 May 2026 09:11 IST

Long-Range Snow Forecast for Kusatsu Onsen

Long-range (14 to 45 days) from 23 May.

For Forecast detail, see below.

Kusatsu Onsen Snow Forecast Highlights

When will there be fresh snow in Kusatsu Onsen?

Kusatsu Onsen Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (1,423m)
Next Snow?
There is no snow currently in the forecast for Kusatsu Onsen.

Long-range Snow Outlook for Kusatsu Onsen

Snowfall

Snow Line

Max 23℃
Min 7℃

Snow unlikely

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Kusatsu Onsen 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 Kusatsu Onsen from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Sat 23	Clear spells.	Max 10℃ Min 7℃
Sun 24	Cloudy.	Max 10℃ Min 7℃
Mon 25	Fair at altitude, clear sky below.	Max 20℃ Min 9℃
Tue 26	Clear spells.	Max 20℃ Min 11℃
Wed 27	Light drizzle.	Max 17℃ Min 13℃
Thu 28	Rain showers.	Max 21℃ Min 13℃
Fri 29	Clear sky.	Max 23℃ Min 10℃

No significant snowfall is forecast for this period.

This Snow Forecast for Kusatsu Onsen, 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 Kusatsu Onsen, 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.

Kusatsu Onsen Snow Forecast updated at 09:11 IST, next update expected imminently.

Ensemble forecast for Kusatsu Onsen, Japan at 1,245m

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 Reliability

Kusatsu Onsen typically experiences reliable snowfall, with an average snow depth of 200 cm during peak season. For the latest snow conditions, including depth and weather updates, check J2Ski for accurate information.

Off-Piste Safety in Kusatsu Onsen

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