Seki Onsen
310m vertical, 14-16m annual snow, two lifts, ungroomed powder terrain. Family-run since 1917 in Myoko, Niigata Prefecture.
Season 2025-2026
Opens
5 Dec 2025
Closes
29 Mar 2026
Days open
114
Annual snow
12.9m
The Overview
Michael Fulton
Melbourne-based skier and snowboarder with 50+ resorts across 5 continents. Specialises in Australian resorts and international resort comparisons.
Seki Onsen operates across 310 metres of vertical drop from a 900-metre base to a 1,210-metre summit. The area records 14 to 16 metres of annual snowfall and comprises four official runs serviced by two chairlifts, spanning approximately 30 hectares. The ski area sits 30 kilometres from the Sea of Japan on the northeastern slopes of Mount Myoko in Niigata Prefecture, capturing Siberian storm systems that deliver exceptional powder depth. The resort operates from early December through early May, often extending its season well beyond neighbouring areas.
Terrain splits 30 per cent beginner, 40 per cent intermediate and 30 per cent advanced across short but steep runs. The Silver Fan Course remains ungroomed throughout the season, offering the steepest gradients and deepest powder within the Myoko mountain range. Most slopes receive minimal grooming, preserving natural snow conditions for powder skiing. The area allows unrestricted off-piste access through marked sidecountry zones and tree skiing terrain, unusual among Japanese resorts.
Seki Onsen has operated continuously since 1917, making it one of Japan's oldest ski areas. The Inoue family has owned and managed the resort for nearly 50 years, maintaining a low-key operation with no ski patrol presence. A single on-mountain restaurant serves homemade meals, whilst the base village contains minimal facilities. The area attracts international powder skiers seeking untracked terrain and an authentic mountain experience free from modern resort infrastructure.
The resort functions independently with no pass affiliations to neighbouring Myoko resorts. Day tickets cost ¥4,500 for adults, reflecting the minimal lift infrastructure and facilities. Seki suits advanced skiers and snowboarders comfortable navigating steep, ungroomed terrain without patrol oversight. The tiny scale means fresh snow tracks out quickly on popular powder days, typically within hours of opening.
310m
Vertical
4
Runs
74 acres
Skiable
12.9m
Annual snow
The Terrain
4 runs across 74 acres skiable
Seki Onsen is a tiny, family-run area on the north-eastern side of the Myoko range, with only four runs over just 30 hectares and a vertical of 310 metres, from 900 metres to 1,210 metres. Despite the size, the snow is the draw. The split is 20% beginner, 50% intermediate and 30% advanced, and the lift system of doubles, triples and quads simply repeats those short, steep pitches. Marked pistes matter less than ungroomed snow, so think of it as a place to ski powder rather than to tick off runs.
The Silver Fan Course is the name to know, an advanced run left ungroomed to hold the steepest slopes and deepest snow on the mountain. Around it are tree runs and sidecountry lines, with moguls forming in spring. Facilities are minimal, with a single on-mountain restaurant and a low-key atmosphere. Seki Onsen suits strong intermediates through to advanced skiers who want a powder-first day without the crowds of larger Myoko areas. Beginners will find it limiting, and anyone heading beyond the marked terrain should carry avalanche gear and go with a guide. Check lift status before travelling, as the season runs long into spring.
Terrain split
4
runs
4 runs across 4 grades
Beginner1 run · 20%
Intermediate2 runs · 50%
Advanced1 run · 30%
Expert0 runs · 0%
Time it right
When to visit Seki Onsen
The 2025-2026 season runs from 5 December 2025 through 29 March 2026, though operations frequently extend into early May when snowpack permits. Lifts operate 9:00 AM to 4:30 PM daily. Seki regularly outlasts all other Myoko resorts due to its exceptional snow retention and north-facing aspect. The area celebrated 100 years of skiing operations in 2017.
Annual snowfall averages 14 to 16 metres, among the highest totals in Japan. The resort's position at 1,000 metres elevation where cold Siberian air meets moisture from the Sea of Japan creates ideal powder conditions. Minimal snowmaking exists as natural accumulation proves sufficient throughout winter. Base depths regularly exceed two metres by mid-season, with the upper single chair sometimes buried during storm cycles.
January and February deliver peak powder conditions with frequent storm cycles refreshing terrain every few days. December offers early-season depth whilst March provides longer daylight and spring corn conditions. Late-season skiing continues through April when mogul fields develop on ungroomed slopes. The area's compact size means fresh lines disappear quickly after storms, making timing critical for untracked snow.
Mid-March onwards brings increased activity as other resorts close, with banked slalom competitions and a fireworks festival marking the late season. No night skiing operates. The resort publishes minimal advance scheduling, reflecting its owner-operated flexibility. Powder board test rides and terrain park features appear intermittently depending on conditions and staffing.
Season 2025-2026
5 Dec 2025
Opens
29 Mar 2026
Closes
114
Days open
12.9 m
Annual snow
The record
Historical snowfall at Seki Onsen
Daily snow reports at Seki Onsen go back to 2012, 14 winters on the books. Open the record to compare winters, lifts and piste.
120 cm
Snowiest day
25 Jan 2026
1090 cm
This winter · 2025-26
so far
1293 cm
Typical winter
average of complete seasons
Winter totals
cm
Past wintersThis winter
Getting there
Getting to Seki Onsen, and where to stay
Seki Onsen sits in Myoko city, Niigata Prefecture, on the northeastern flank of Mount Myoko, a 2,454-metre active stratovolcano. The base village rests at 900 metres elevation in a narrow valley formed by the Myoko mountain range. The Joshinetsu National Park surrounds the area, with the resort positioned 30 kilometres inland from the Sea of Japan coast. Traditional hot spring baths line the village streets, which opened in 1729 as one of Myoko's oldest onsen settlements.
Sekiyama Station on the Myoko Haneuma Line provides the nearest rail access, 10 to 15 minutes by bus or taxi from the resort. Akakura Onsen village, the main accommodation hub for Myoko, lies 12 kilometres south and 30 minutes by road. The town of Myokokogen sits 12 kilometres southeast near the rail station. Tsubame Onsen, another hot spring village, is located 3 kilometres uphill from Seki via Prefecture Road 39.
Road access follows Route 18 to either Myoko Kogen Interchange or Nakago Interchange on the Joshinetsu Expressway, then 15 to 20 kilometres via Prefecture Road 39. Drive times from Nagano city average one hour, whilst Tokyo lies approximately four to five hours south. Winter road conditions require caution as heavy snowfall frequently impacts Route 39. Limited parking at the resort base fills quickly on powder days.
Tokyo's Narita and Haneda airports serve as primary international gateways, approximately 300 kilometres south. Direct shuttle buses operate from both airports to Myoko, taking five to six hours. Niigata Airport sits 160 kilometres northeast, offering limited international flights and two-hour road transfers. Train connections require the Hokuriku Shinkansen to Nagano Station, then the Kita-Shinano Line 45 minutes to Myoko-Kogen Station, followed by a local train to Sekiyama.
Where to stay
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Hotels and lodges near Seki Onsen, powered by Stay22.
Good to know
Frequently asked
When is Seki Onsen's ski season?
Seki Onsen's 2025-2026 season typically runs from December 5 through March 29. That window is roughly 114 calendar days, though daily operations depend on snow cover, weather, and lift maintenance.
Resorts in Chubu, Japan often announce firm dates closer to winter; check the live snow report before you travel if you are planning around opening weekend or spring closure.
How much skiable terrain does Seki Onsen have?
Seki Onsen lists about 74 acres skiable of marked terrain spread across 4 named runs (30 hectares alongside 74 acres skiable). That footprint is what most riders experience on a lift-served day. Side-country or hike-to terrain may sit outside these published numbers.
Use the trail map to see how the mountain is laid out and where the longest fall-line runs connect back to base.
What is the terrain like at Seki Onsen?
Trail grading at Seki Onsen breaks down roughly as 20% beginner, 50% intermediate, 30% advanced. The mix is balanced enough for mixed-ability groups, so learners can stay on marked green/blue (Green/Red) terrain while stronger skiers peel off to steeper pitches.
Percentages describe the resort's published piste mix, not vertical metres. A mountain with modest "expert" stats can still feel demanding if the steep terrain is long or exposed. Read the trail map alongside these numbers when planning your route.
How many lifts does Seki Onsen have?
Seki Onsen operates 18 lifts across 3 lift types. The fleet includes 10 double chairs, 5 quad chairs, and 3 triple chairs.
Lift mix affects how quickly you can lap your favourite zones. Gondolas and trams move big crowds to mid-mountain, while shorter chairs and surface lifts often serve learning areas or local pods. Check the live snow report on ski days for real-time open/closed status.
What is the elevation and vertical drop at Seki Onsen?
Base elevation at Seki Onsen is about 900 m (2,953 ft), with the summit around 1,210 m (3,970 ft), giving roughly 310 m (1,017 ft) of vertical from base to top.
Higher start heights usually mean colder, drier snow holding longer into spring, but also thinner air and faster weather changes. Pack layers if you are riding from village level to summit lifts in one day.
How much snow does Seki Onsen get each season?
Seki Onsen averages about 1,293 cm (509 inches) of natural snowfall per season. That is a long-term climate figure. Any single winter can run well above or below it depending on storm track and temperature.
For trip planning, pair this baseline with the live snow report and webcams: fresh cycles show up in overnight totals and summit cameras long before season averages tell you much about today's surface.
How can I check snow and mountain conditions at Seki Onsen before I go?
SnowStash pulls together a downloadable piste map, and the daily snow report for Seki Onsen so you can plan from home. Webcams refresh on a short interval and are the fastest way to judge visibility, wind exposure, and whether storm snow is still falling.
The snow report adds structured totals, base depth where available, and lift/trail status when the resort publishes it. Use both together: cameras show what it looks like right now, and the report summarises numbers your group can compare day to day.
Does Seki Onsen have a trail map?
Yes. The downloadable PDF/image map is better for offline planning, marking meeting points, and understanding the full mountain layout at a glance.
Both versions are on the trail map page for Seki Onsen. If you are navigating with kids or meeting friends across separate lifts, screenshot or print the static map and keep the live map open on your phone for operational updates.
Where is Seki Onsen located?
Seki Onsen sits in Chubu, Japan. That regional context matters for travel planning: airport transfers, snow tyres, and typical storm patterns all follow geography as much as resort marketing.
Browse nearby accommodation from the resort page if you are comparing village-base vs valley-base stays; where you sleep changes your first lift of the day more than most trail stats do.
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