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snowy resort
Ski Japan - Gunma

Ohana Snow History

36.80° N 138.98° E

Weather Forecast for Ohana at 625m altitude

Issued:
2 pm 17 Sep 2026 (local time)
Forecast update in:
 hr  min

Is Ohana snowsure?

The snowiest week in Ohana is week 2 of January. There are typically 4.4 snowy days during this week with 34cm of snowfall. Check out the Ohana Snow History graphs below. Select any week of the year to see the typical Ski Conditions, Snowfall Amount and Temperature based on nowcast weather data over the last 11 years.

Average monthly snow in Ohana

MonthSnow amount (week)Snow days (week)
December21cm3.0 days
January29cm4.3 days
February24cm3.9 days
March8cm2.0 days
April1cm0.4 days

Average Snow and Weather Conditions in Ohana during September (week 3):

The average snowfall forecast during week 3 of September for Ohana is 0 cm. There are typically 0.0 snowy days during this week. Ohana expected weather and snow conditions during the third week of September at the middle elevation of the ski area at 625m, based on historical averages over the last 13 years: At this time of year the mean freezing level (4443m) is far above the mid altitude of Ohana. Snowfall is very unlikely in Ohana in the middle of September but it rains often, with rain falling on three or four days during this particular week of September. Warm day temperatures in Ohana during week three of September. The average temperature extremes are between 18.9°C and 20.5°C at the mid altitude. Expect the sun to come out on two or three days per week. Generally light winds (average 8km/h).


Snow History: Compare Resorts


Compare Ohana with:

Snow Depths

Recorded snow depths for the upper and lower slopes in Ohana and (2012 – 2026).

Winter
Summer

Ohana


Lower Slopes
Upper Slopes
Fresh Snow

Average Snow Conditions in

Best ski days per week in Ohana and (2012 – 2026)

Winter
Summer

Bluebird Powder Day
(Fresh snow, mostly sunny, light wind)
Powder Day
(Fresh snow, limited sun, any wind)
Bluebird Day
(Average snow, mostly sunny, light wind)
Very windy days
(>30km/h)

The most cherished days on the mountain in Ohana are Bluebird Powder days when it is mostly sunny with light winds following very recent snowfall. Poorer weather conditions may prevail on Powder days when the visibility can be limited but the snow is significantly deep and fresh for keen powder-hounds. Bluebird days can suit many skiers that aren’t necessarily hunting powder but want to enjoy the snowy mountains in sunnier conditions and light winds.


Average Snowfall in

Graph showing the average precipitation (snow/rain) in Ohana and (2012 – 2026)

Winter
Summer

Snowfall amount
(bar chart)
Days with significant snowfall.
(>5cm)
Days with significant rainfall.
(>5mm)

The snowiest weeks of the year in Ohana are shown but also bear in mind the number of days that it typically snows each week if you want regular fresh tracks. The risk of a rainy day is shown but be sure to switch between elevations to see if lower lifts are rain affected or higher lifts remain snowy despite any rain further down the mountain.


Average Temperature in

Graph showing the average temperature and freezing level at Ohana and (2012 – 2026)

Winter
Summer

Average temperature
Maximum
Minimum
Temperatures
Above freezing
Below freezing
Freezing level
Dashed line

The highest and lowest temperatures averaged for each week of the year in Ohana are shown. Check out the risk of freze-thaw conditions prevailing at different elevations for any given week. We also show the extremes of temperature (blue/red dots) that reveal the chance of unusually warm or cold conditions.