Japan · Niigata

Tainai Ski and Snowboard area

胎内スキー場
Off season
Official site Lift tickets (official)

No snow yet. Not open yet for 2026/27. We have not yet found an official opening date. Snow depth and the seven-day outlook appear once snow is on the ground or forecast.

Typical snowfall
629cm

A weather-model figure, worked out the same way for every ski area, and lower than what actually falls. Use it to compare ski areas, not against the resort’s own totals. How we measure →

Elevation
147–703 m
Across
3.4 km

The Kogen No.1 slope looks down over the Sea of Japan. Shikanomata Lodge, at the foot of the Kazakura slope, is known for its Genghis Khan grilled-lamb set meal, a dish the prefectural tourism association also singles out when it writes about the area. Sources: tainairesort.jp, niigata-kankou.or.jp (sources read 11 Oct 2026; an AI draft the site operator has not yet checked)

How much snow it gets

Modelled from weather data the same way at all 3,069 ski areas we cover. These are not the resort’s own published figures.

Seasonal snowfall
629cm
per season
Worst of 12 winters
261cm
The middle winter of the 12: 666 cm. The best: 914 cm.
World rank
34
of 3,069 worldwide
Rank in country
23
of 397 in Japan
Elevation rank
317
Highest to lowest, of 397 in Japan. The centre point sits at 294 m, 472 m below the national median.
Quality rank
253
of 397 in Japan
Temp when snowing
−0.7°C
Japanese median: −3.6°C
Rain days
45%
Japanese median: 16%
Days over 5 cm
40%
Japanese median: 15%
Wind when snowing
20km/h
Average daily peak, 10 m above ground across a model grid cell; not the wind on ridges or lift tops
Dryness 19
Frequency 100
Freedom from rain 35
Calm when snowing (model grid) 94

The tick marks the median across every Japanese ski area we measure. All four bars run the same way — longer is better.

The quality score leaves out how much snow falls (it uses temperature, frequency, rain and wind).

Compared with what is nearby

Within 50 km in a straight line. Ski areas in the same weather-model cell (about 30 km across) get the same figure.

Ski areaDistanceSeasonal snowfallWorld rank
Ninox Snow Park9.1 km567 cm54
Yokone21.0 km446 cm114
Mikawa Onsen33.0 km363 cm243
Tenoko Ski Area41.0 km312 cm439
Sannokura42.0 km384 cm201

Compare side by side with Ninox Snow Park and Yokone →

Runs and lifts

Counted from the runs and lifts drawn on OpenStreetMap, within the boundary of the ski area. These are not the resort’s own published figures.

Marked runs
13
Run length
11km
Lifts
8
Vertical
557m
Top 703 m · base 147 m

Run map

EasyIntermediateAdvancedOther Lift
North is up. Runs are coloured by difficulty; black lines are lifts.
Run map

Drag to move around, and use + and − to zoom. On a phone, swipe to move and pinch to zoom in further.

Slope shape, difficulty and lift types

The shape of the mountain

Longest run on the map1.8 km
Steepest pitch36°measured over at least 30 m
Average gradient of the runs11.2°

Which way the slopes face

North 44%
East 4%
South 8%
West 44%

Only 48% of the vertical on the runs descends to the north or east. The most common direction is north (44%).

By difficulty

Easy 4 · 5.4 km
Intermediate 6 · 4.7 km
Advanced 2 · 0.7 km
Other 1 · 0.3 km

Lift types

  • Chairlift8

See past trail maps on Skimap.org ↗

Source: OpenSkiMap (© OpenStreetMap contributors, ODbL 1.0). How finely ski areas are drawn varies by region, so treat the counts as indicative. Vertical is the difference between the highest and lowest points of the mapped runs and lifts.

When it falls, and how winters differ

Month by month

The most snow falls in January. March brings 26% of January’s snowfall. That is a steeper fall than the median for ski areas in Japan (52%): the snow here is concentrated early in the season. For skiing, though, the amount matters more than the share: March brings 61 cm, more than the median of 46 cm.

173cm
Dec
239cm
Jan
158cm
Feb
61cm
Mar
Average snowfall by month, last 12 winters

Winter by winter

Across the 12 winters measured, the average is 629 cm, and 4 of them fell short of it. The leanest was 2015/16 with 261 cm; the biggest was 2024/25 with 914 cm (3.5 times as much).

396
261
655
814
660
473
704
767
672
541
914
696
14/1515/1616/1717/1818/1919/2020/2121/2222/2323/2424/2525/26

Snowfall each winter (December–March total). The dashed line is the average; the numbers mark the leanest and the biggest winter.

How these figures are made

Live cameras

This ski area does not put a camera on its own slopes. The nearest live view is the road below.

Footage remains the copyright of each operator. JAPANSNOWLINE neither stores nor redistributes it.

What was actually measured nearby

Total snowfall from December to March recorded at the 下関 weather station — 11.2 km from this ski area, 374 m below its mid-slope.

Three-season average397 cm
2023/24259 cm
2024/25502 cm
2025/26431 cm

The figure calculated on this page is 717 cm.

A weather station is not a ski slope. We picked one at a similar elevation, but it stands in a valley or a village. More snow falls on the mountain above it. We have not tried to guess how much more.

Source: Japan Meteorological Agency historical records

Hot springs nearby, as analysed

1 hot spring sources with published analyses lie within 5 km of this ski area, nearest first (the hottest is 25.6 °C).

Show the sources
SourceDistanceTemperaturepH
胎内2.3 km25.6℃ lukewarm8.8 alkaline

These are analyses of hot spring sources, not a list of baths you can visit. They date from 1910 to 2005, many from decades ago, so today’s temperature and chemistry may differ. Names are as recorded in Japanese. Temperature and pH bands follow Japan’s standard for analysing hot springs.

Source: processed from the hot spring analysis data in the Geothermal Information Database (GRES-DB), Geological Survey of Japan, AIST

Worth seeing nearby

Within 20 km in a straight line, nearest first. Some lie over a pass that is closed in winter.

Show the list
PlaceTypeDistance
Tainaigawa Dam胎内川ダムNature5.5 km
Oppo-ji Temple乙寶寺Temple15.8 km
Suwa Shrine (Shibata)諏訪神社 (新発田市)Shrine16.4 km
Shibata Castle新発田城Historic site16.5 km
Shibata Castle Ruins Park新発田城址公園Historic site16.6 km
Shimizu-en清水園Park16.8 km

Chosen from the places most read about on Wikipedia, favouring those with an English article. Based on the Japanese Wikipedia lists of sights in each prefecture, as compiled in travel-log-data (CC BY-SA 4.0). English names from Wikidata (CC0). The content of this section is available under CC BY-SA 4.0.

Map

The weather map, and where it sits among nearby ski areas.

Official piste map ↗

Getting there

By train
Nakajo Station (JR Uetsu Main Line): about 20 minutes by car or taxi
By car
about 25 minutes from Nakajo IC (Nihonkai-Tohoku Expressway)

Source: tainairesort.jp · checked 1 Nov 2026. Shuttle days and times change with the season; check the official site before you go.

Going with children

Kids’ area
Yes (details in Japanese on the official site)
Childcare
Not checked
Parking
Yes (details in Japanese on the official site)
Rental
Yes (details in Japanese on the official site)

Checked on the official site (19 Oct 2026) · Source. “Not checked” means we have not looked yet. Compare with other ski areas →

Places to stay nearbyPR

Contains advertising. Property names and Rakuten Travel’s booking pages are in Japanese.

1 properties on Rakuten Travel lie within about 3 km of this ski area. The table shows the nearest 1 with a listed price.

Property (links to Rakuten Travel)Lowest listed (per person, tax incl.)RatingDistanceGetting there
新胎内温泉 ロイヤル胎内パークホテル ¥11,4004.51/5 470 reviews2.2 km電車:東京駅⇒中条駅 最短約3時間 中条駅より無料送迎約20分(要予約) 車:中条ICより国道7号線経由で約30分
Pick dates and guests to check rooms on Rakuten Travel

Prices are the lowest Rakuten Travel lists; a property name, or “Pick dates and guests” above, shows prices and rooms for your dates.

Contains advertising. Property names and Rakuten Travel’s booking pages are in Japanese. · Property data by Rakuten Travel (Supported by Rakuten Developers)

Places to stay on the map

2 places within 12 km of the slopes, as mapped on OpenStreetMap, many of them small inns and pensions. Many are not on booking sites — open the name for the website or the map.

Nearest: 10.6 km

Show the nearest places

Nearest first

Accommodation data: OpenStreetMap

Other booking sites: Booking.com ↗ · Agoda ↗ · Rakuten Travelad ↗

“ad” marks links that pay us a commission if you book. Links without it are not affiliated.

Guides that cover Tainai Ski and Snowboard area

Climate and the future · 17 Aug 2026

Snow Quality or Snow Quantity: Why Japan's Snowiest Ski Areas Are Not Its Best

Japan's snowiest ski areas see rain on more than one winter day in four, and the wettest of them on two in five. We rank all 397 of them on a quality measure that ignores how much falls and scores what falls: temperature on snowing days, how often it dumps, and penalties for rain and wind. It disagrees with the snowfall ranking almost completely.

Read the guide → All guides →

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