Asia
Gassan Resort Guide
Likely closed for the season (no closing date on record)
Likely closed for the season (no closing date on record)
Best months to book: January, February, March · 30-yr snow record
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Likely closed for the season (no closing date on record)
Weather data is still collected for informational purposes.
Last Snowfall
Oct 28
2d agoPast 24 Hours
0cm
Past 48 Hours
0cm
Past 10 Days
5cm
7-Day Forecast
0cm
Snow Depth
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Resort Guide
Gassan Ski Resort is located in Yamagata Prefecture, Japan, on the slopes of Mount Gassan. Known for its unique spring and summer ski season due to heavy winter snowfall, the resort typically operates from April to July. Gassan offers a relaxed atmosphere with natural, ungroomed slopes, catering primarily to intermediate and advanced skiers seeking a distinctive late-season experience. Key amenities include rental services and a simple base lodge, with the resort standing out for its deep snowpack and scenic mountain views.
Gallery
Click to expand • 5 total photos
Terrain & lifts
Resort-reported stats for Gassan
Lifts
3
Longest run
10 km / 6.2 mi
Lift fleet
- Double chair1
- Surface lift2
Resort Info
Season dates
Top Après Ski
Check local recommendations for the best après ski spots in Gassan.
Season vs Historic
Updated Fri, Oct 30, 11:02 PM UTC
5cm
Season Total
This Season to Date
+430%
vs 5-Year Avg
1cm avg by now
+0%
vs 30-Year Avg
0cm avg by now
1cm
5-Yr Avg by Now
This season is at 5.3 cm to date. The last completed season totaled ~5.3 cm. That's 430% above the 5-year average (1 cm). Versus the 30-year baseline: Infinity% above the 30-year average (0 cm).
Gassan Season Snowfall
Loading the ledger…
Gassan Snow History
Average annual snowfall is 595cm with an average of 95 snowfall days per season. The recent decade runs 34% above this average (794cm over the last ten tracked seasons). The table below shows monthly averages across 30 seasons of archive data (modeled snowpack at mid-elevation).
| Month | Avg Snowfall | Snowfall Days | Avg Base Depth | Max Base Depth | Biggest Snowfall |
|---|---|---|---|---|---|
| November | 41cm | 7 days | 4cm | 17cm | 10cm |
| December | 151cm | 21 days | 44cm | 86cm | 16cm |
| January | 179cm | 26 days | 124cm | 160cm | 18cm |
| February | 117cm | 21 days | 167cm | 187cm | 14cm |
| March | 84cm | 15 days | 170cm | 191cm | 13cm |
| April | 24cm | 5 days | 113cm | 162cm | 8cm |
| May | 0cm | 0 days | 13cm | 61cm | 1cm |
Source: SnowSure archive · Open-Meteo ERA5 reanalysis at mid-elevation. Depth is modeled, not resort-reported.
Best Months to Visit
January
Peak Powder
February
Peak Powder
March
Good
December
Good
Note: Based on typical powder season patterns for this region.
Frequently asked questions about Gassan
- Where is Gassan?
- Gassan is a ski resort in Japan.
- How high is Gassan?
- Gassan runs from a base elevation of 1,235 m (4,052 ft) to a summit of 1,670 m (5,479 ft), giving a vertical drop of 435 m (1,427 ft).
- How big is Gassan?
- Gassan has 4 marked runs and 3 lifts.
- How much snow does Gassan get in a typical season?
- Gassan averages 1181 inches / 3000 cm of snowfall in a typical season. Any individual season can run well above or below that.
