Is Omoshiroyama Kōgen Ski Park snowsure?
The snowiest week in Omoshiroyama Kōgen Ski Park is week 4 of January. There are typically 5.5 snowy days during this week with 32 cm of snowfall. Check out the Omoshiroyama Kōgen Ski Park 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 Omoshiroyama Kōgen Ski Park
| Month | Snow amount (week) | Snow days (week) |
|---|---|---|
| December | 19 cm | 4.0 days |
| January | 27 cm | 5.5 days |
| February | 20 cm | 4.8 days |
| March | 11 cm | 3.2 days |
| April | 2 cm | 0.8 days |
Average Snow and Weather Conditions in Omoshiroyama Kōgen Ski Park during May (week 1):
The average snowfall forecast during week 1 of May for Omoshiroyama Kōgen Ski Park is 0 cm. There are typically 0.1 snowy days during this week.Omoshiroyama Kogen Ski Park expected weather and snow conditions during the first week of May at the middle elevation of the ski area at 680m, based on historical averages over the last 16 years: At this time of year the typical freezing level (2783m) is far above the middle elevation of Omoshiroyama Kogen Ski Park. Snow falls on just one day every 14 years in Omoshiroyama Kogen Ski Park 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. Usual temperatures are well above freezing both night and day at the middle elevation in Omoshiroyama Kogen Ski Park during week one of May with the average afternoon temperature 12.9°C and the minimum temperature 10.8°C. Expect the sun to come out on two or three days per week. Mainly light winds (average 19km/h) but the historical norm is for the mean wind to reach 30km/h one day in this week.
Snow History: Compare Resorts
Omoshiroyama Kōgen Ski Park Snow Depths
Recorded snow depths for the upper and lower slopes in Omoshiroyama Kōgen Ski Park and (2007 – 2024).
Omoshiroyama Kōgen Ski Park

The most cherished days on the mountain in Omoshiroyama Kōgen Ski Park 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.
The snowiest weeks of the year in Omoshiroyama Kōgen Ski Park 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.
The highest and lowest temperatures averaged for each week of the year in Omoshiroyama Kōgen Ski Park 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.




