Oze Iwakura 7-Day Snow Forecast

Oze Iwakura Long-Range Snow Forecast Updated today

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Updated 20 March 2026 17:41 CDT

Long-Range Snow Forecast for Oze Iwakura

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

For Forecast detail, see below.

Oze Iwakura Snow Forecast Highlights

When will there be fresh snow in Oze Iwakura?

Oze Iwakura Snow Forecast Highlights - JMA
Snowfall prediction at mid-mountain (1,355m)
Next Snow Expected	25 March
Next Snow Amount	1cm
Next 48 Hours	-
Next 7 Days	3cm

Long-range Snow Outlook for Oze Iwakura

Snowfall

Snow Line

Max 11℃
Min -7℃

5cm New Snow

Snow Line from 1,544m to resort level (1,006m).

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Oze Iwakura 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 Oze Iwakura from OpenMeteo(JMA)
	Snow and Weather	Temp Town
Sat 21	Clear sky.	Max 2℃ Min -7℃
Sun 22	Clear sky.	Max 9℃ Min -3℃
Mon 23	Fair.	Max 9℃ Min 0℃
Tue 24	1cm New Snow Light snow. Snow Line from 1,068m to resort level (1,006m).	Max 4℃ Min -3℃
Wed 25	up to 4cm New Snow Light snow. Snow Line from 1,468m to resort level (1,006m).	Max 5℃ Min -3℃
Thu 26	up to 1cm New Snow Light snow showers at altitude, light rain showers below. Snow Line from 1,437m to 1,021m, with rain below.	Max 7℃ Min -2℃
Fri 27	Clear sky.	Max 11℃ Min -4℃

This Snow Forecast for Oze Iwakura, 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 Oze Iwakura, 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.

Oze Iwakura Snow Forecast updated at 17:41 CDT, next update expected 23:00 CDT.

Ensemble forecast for Oze Iwakura, Japan at 1,006m

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 Oze Iwakura

Snow Forecasts for Ski Resorts near Oze Iwakura
Ski Area	48 Hr	7 Day
Kawaba	-	14cm
Naeba	1cm	8cm
Iwappara	-	1cm

Snow Reliability

Oze Iwakura enjoys reliable snow conditions, typically featuring a snow depth of 2-3 meters during peak season. Average snowfall is consistent, but visitors are encouraged to check the latest snow conditions on J2Ski for accurate updates.

Off-Piste Safety in Oze Iwakura

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