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snowy resort
Lat Long: 36.73° N 138.51° E
Ski Japan - Nagano

Shiga Kogen-Tannenomori Okojo Snow History

Weather Forecast for Tannenomori Okojo at 1750m altitude

Issued: 8 am 13 Aug 2026 (local time)

Forecast update in  hr  min

Is Shiga Kogen-Tannenomori Okojo snowsure?

The snowiest week in Shiga Kogen-Tannenomori Okojo is week 2 of January. There are typically 5.4 snowy days during this week with 74cm of snowfall. Check out the Shiga Kogen-Tannenomori Okojo 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 Shiga Kogen-Tannenomori Okojo

MonthSnow amount (week)Snow days (week)
December53cm4.6 days
January65cm5.3 days
February54cm5.0 days
March38cm3.8 days
April11cm1.9 days

Average Snow and Weather Conditions in Shiga Kogen-Tannenomori Okojo during August (week 2):

The average snowfall forecast during week 2 of August for Shiga Kogen-Tannenomori Okojo is 0 cm. There are typically 0.0 snowy days during this week. Tannenomori Okojo prevailing weather and snow conditions during the second week of August at the middle elevation of the ski area at 1750m, based on historical averages over the last 13 years: At this time of year the typical freezing level (5120m) is far above the middle elevation of Tannenomori Okojo. Snowy weather is unknown in Tannenomori Okojo in the middle of August but expect several rainy days. On average there just three dry days during this week each year. Usual temperatures are well above freezing both day and night at the middle elevation in Tannenomori Okojo during week two of August with the average afternoon temperature 18.4°C and the minimum temperature 17.3°C. On average, only one or two days with sunshine per week. Generally light winds (average 10km/h).


Snow History: Compare Resorts


Compare Shiga Kogen-Tannenomori Okojo with:

Snow Depths

Recorded snow depths for the upper and lower slopes in Shiga Kogen-Tannenomori Okojo and (2012 – 2026).

Winter
Summer

Shiga Kogen-Tannenomori Okojo


Lower Slopes
Upper Slopes
Fresh Snow

Average Snow Conditions in

Best ski days per week in Shiga Kogen-Tannenomori Okojo 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 Shiga Kogen-Tannenomori Okojo 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 Shiga Kogen-Tannenomori Okojo 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 Shiga Kogen-Tannenomori Okojo 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 Shiga Kogen-Tannenomori Okojo 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 Shiga Kogen-Tannenomori Okojo 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.