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snowy resort
Lat Long: 36.07° N 138.38° E
Ski Japan - Nagano

Yachiho Kogen Snow History

Weather Forecast for Yachiho Kogen at 1730m altitude

Issued: 8 pm 30 Apr 2026 (local time)

Forecast update in  hr  min

Is Yachiho Kogen snowsure?

The snowiest week in Yachiho Kogen is week 2 of February. There are typically 3.3 snowy days during this week with 19cm of snowfall. Check out the Yachiho Kogen 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 Yachiho Kogen

MonthSnow amount (week)Snow days (week)
December9cm2.4 days
January12cm2.8 days
February14cm2.8 days
March14cm2.7 days
April5cm1.0 days

Average Snow and Weather Conditions in Yachiho Kogen during May (week 1):

The average snowfall forecast during week 1 of May for Yachiho Kogen is 0 cm. There are typically 0.2 snowy days during this week.Yachiho Kogen typical weather and snow conditions during the first week of May at the middle elevation of the ski area at 1730m, based on historical averages over the last 15 years: At this time of year the normal freezing level (3042m) is a long way above the middle elevation of Yachiho Kogen. Snow falls on just one day every 5 years in Yachiho Kogen at the start of May but in a typical year there are a couple of wet days during this week of May. In the years when snow falls at this time of year, forecast model average snowfall for the week is 0cm. Temperatures generally above freezing both day and night in Yachiho Kogen during week one of May with average maximum temperature 8.9°C and minimum temperature 6.7°C at the middle elevation. Expect the sun to shine on three out of seven days. Mostly light winds (average 14km/h) but there is a 50% chance that the mean wind speed will be greater than more than 30km/h one day.


Snow History: Compare Resorts


Compare Yachiho Kogen with:

Snow Depths

Recorded snow depths for the upper and lower slopes in Yachiho Kogen and (2007 – 2024).

Winter
Summer

Yachiho Kogen


Lower Slopes
Upper Slopes
Fresh Snow

Average Snow Conditions in

Best ski days per week in Yachiho Kogen and (2007 – 2024)

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 Yachiho Kogen 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 Yachiho Kogen and (2007 – 2024)

Winter
Summer

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

The snowiest weeks of the year in Yachiho Kogen 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 Yachiho Kogen and (2007 – 2024)

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 Yachiho Kogen 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.