2023年1月11日丸沼高原Top to bottom4km の壁遊びパウダー編 #gentemstick 沼野健補
By: MARUNUMA · 2023-01-16
Marunuma Kogen Ski Resort is a ski area in Gunma, Japan, on slopes between roughly 1,365 and 1,965 m. Its mapped area is about 2.9 km across, with 17 marked runs and 8 lifts (about 10 km of piste in all).
Over the last twelve winters the ERA5 weather model gives it 249 cm of snowfall a season, 201st of the 397 ski areas we measure in Japan. Its winters are fairly steady; even the leanest, 2015/16 (158 cm), reached 63% of the average. January is usually the snowiest month, with about 77 cm. Snowfall days are cold, averaging −8.0 °C at mid-mountain, and its snow-quality score ranks 41st of 397 in Japan.
Below is a link to its official live camera.
Snow depth and the seven-day outlook appear here once snow starts to fall. Until then, the long-run record comes first.
Temperature
10℃
Max wind
6.1km/h
Elevation (est.)
1365–1965m
Across
2.9km
Elevation range is estimated by sampling points across the ski area.
How much snow it gets
Measured by us across 3,069 ski areas by one identical method. These are not the resort’s own published figures.
Seasonal snowfall
249 cm
per season
Worst of 12 winters
158 cm
A typical winter: 250 cm. The best: 312 cm.
World rank
743
of 3,069 worldwide
Rank in country
201
of 397 in Japan
Elevation rank
27
Highest to lowest, of 397 in Japan. The centre point sits at 1,600 m, 834 m above the national median.
Quality rank
41
of 397 in Japan
Temp when snowing
-8.0°C
Japanese median: -3.5°C
Rain days
7%
Japanese median: 16%
Days over 5 cm
15%
Japanese median: 15%
Wind when snowing
21 km/h
Dryness 0.72
Frequency 0.42
Freedom from rain 0.83
Calm when snowing 0.93
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 deliberately excludes how much snow falls — it uses temperature, frequency, rain and wind. Snowing a lot and snowing well are different things.
Compared with what is nearby
Within 50 km straight line. Measured the same way, so the ranks compare directly. Ski areas a few kilometres apart share a weather grid cell and can return the same figure.
| Ski area | Distance | Seasonal snowfall | World rank |
|---|---|---|---|
| Nikko Yumoto Onsen Ski Park | 6.3 km | 214 cm | 1008 |
| Snow Park Oze Tokura | 9.8 km | 252 cm | 712 |
| Katashina Kogen Ski Resort | 11 km | 252 cm | 712 |
| White World Oze Iwakura | 12 km | 252 cm | 712 |
| Katashina Ogna Hotaka Snow Resort | 14 km | 252 cm | 712 |
When it falls, and how winters differ
Month by month
Month by month, the most snow falls in January. March brings 78% of January’s snowfall. That is a gentler fall than the median for ski areas in Japan (52%). In amount, March brings 60 cm, more than the median of 46 cm.
58cmDec
77cmJan
54cmFeb
60cmMar
Winter by winter
Across the 12 winters measured, the average is 249 cm, and 6 of them fell short of it. The leanest was 2015/16 with 158 cm; the biggest was 2021/22 with 312 cm (2.0 times as much). For 63% of the 397 ski areas in Japan, the leanest winter was the same 2015/16: bad winters tend to hit a whole region at once.
158
312
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.
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
17
Run length
10km
Lifts
8
Vertical
608m
Top 1,991 m · base 1,383 m
Run map
EasyIntermediateAdvancedOther Lift
The shape of the mountain
Longest run on the map1.2 km
Steepest pitch30°measured over at least 30 m
Average gradient of the runs11.1°
Which way the slopes face
North 25%
East 3%
South 3%
West 68%
Only 28% of the vertical on the runs descends to the north or east. More of the terrain faces the sun.
By difficulty
Easy 7
Intermediate 6
Advanced 3
Other 1
Lift types
- Chairlift7
- Gondola1
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.
Live Cameras
Footage remains the copyright of each operator. JAPANSNOWLINE neither stores nor redistributes it.
Oze and Marunuma webcams & snow report — all 5 ski areas →
See the snow in motion
Videos remain the copyright of whoever filmed them. JAPANSNOWLINE stores no video and plays everything through the standard YouTube player.
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 48 °C).
| Source | Distance | Temperature | pH | Type | Analysed |
|---|---|---|---|---|---|
| 丸沼混合泉 | 2.7 km | 48℃ hot | 7.7 mildly alkaline | simple | — |
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
Places within 20 km of this ski area, for a day off the slopes or an evening. Chosen from those most read about on Wikipedia, favouring places with an English Wikipedia article, and listed nearest first.
| Place | Type | Distance |
|---|---|---|
| Marunuma Dam丸沼ダム | Landmark | 1.4 km |
| Mount Nikkō-Shirane日光白根山 | Mountain | 3.2 km |
| Senjōgahara戦場ヶ原 | Nature | 9.7 km |
| Lake Chūzenji中禅寺湖 | Nature | 13.3 km |
| Oze尾瀬 | Nature | 16.1 km |
| Kegon Falls華厳滝 | Nature | 16.4 km |
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
Where it sits relative to nearby resorts. For a piste map, see the official site.
Official piste map ↗ Coordinates: 36.8115, 139.3422
Places to stay nearby
14 properties on Rakuten Travel lie within 3 km of this ski area, listed cheapest first.
| Property | From | Rating | Distance | Getting there |
|---|---|---|---|---|
| ペンション 森の風 | ¥5,500 | 4.45 64 reviews | 1.7 km | 沼田駅より車にて６０分。丸沼高原スキー場まで車で約５分。 |
| ペンション コスモス＜群馬県利根郡＞ | ¥5,600 | 4.65 199 reviews | 1.3 km | 関越道沼田ＩＣから６０分丸沼高原第1ペンション村Ａ入り口入ってすぐ右上です。 |
| シャレー丸沼 | ¥6,000 | 4.33 63 reviews | 1.2 km | 沼田駅よりバスで１００分 |
| 丸沼温泉 環湖荘（かんこそう） | ¥7,150 | 4.41 228 reviews | 2.6 km | または沼田ICから車で60分／日光湯元から車で2０分 路線バスあり。 |
| ペンションアルマ | ¥8,000 | 4.00 6 reviews | 1.6 km | 関越自動車道 沼田IC出口より約60分 |
| ペンション もくもく | ¥8,000 | 4.55 86 reviews | 1.6 km | 上越線 沼田駅／関越道 沼田ＩＣよりＲ１２０で４３Ｋｍ／日光有料清滝ＩＣよりＲ１２０で金精峠４３Ｋｍ |
| ペンション プモリ＜群馬県＞ | ¥8,000 | 5.00 76 reviews | 1.7 km | 関越自動車道沼田ICより120号６０分／JR沼田駅よりバス８０分 |
| ペンション 横山 | ¥8,250 | 4.17 53 reviews | 1.8 km | 上越線 沼田駅よりバスで９０分／関越道 沼田ＩＣより６０分／東北道 清滝ＩＣより７０分／上越新幹線 上毛高原駅 |
| ロッジ颯 | ¥9,500 | — | 1.7 km | 沼田駅より車で約１時間、沼田ＩＣより車で約１時間 |
| ペンション ペチカ | ¥9,500 | 4.57 15 reviews | 1.7 km | 上越新幹線 上毛高原駅よりお車にて約1時間 |
| 尾瀬・日光に近い料理自慢のぺンション カレンズ | ¥11,500 | 4.67 33 reviews | 1.7 km | 上越線 沼田駅/沼田ICよりR120で６０分/日光清滝IC,R１２０で６０分 |
| プチホテル リージェントハウス (丸沼高原) | ¥14,000 | 4.82 331 reviews | 1.3 km | 関越道沼田ＩＣより38ｋｍ 丸沼高原スキー場の第3駐車場の敷地内にあります。ゲレンデまで徒歩5分 |
Show the other 2
| Property | From | Rating | Distance | Getting there |
|---|---|---|---|---|
| ペンション 木もれ陽の家 ゆきだるま | — | — | 1.6 km | 電車でお越しの方、関越交通バス利用で沼田駅から鎌田へ、鎌田から丸沼高原行バス第２ペンション村下車すぐ |
| Ｃａｆｅと宿 Ｂｏｎｎｙ | — | 5.00 28 reviews | 1.7 km | ＪＲ上越線 沼田駅より |
Contains advertising · Property data by Rakuten Travel (Supported by Rakuten Developers)
Stay nearby
16 places within 12 km of the slopes. Most of them do not take online bookings — open the map for contact details.
16 Hotel
Nearest: 1.3 km
Nearest first
- 山の家不思議草 Hotel 1.3 km
- ペンション ふぁみりぃ Hotel 1.3 km
- ペンション コスモス Hotel 1.3 km
- ゲストハウス ストーン・アイランド Hotel 1.4 km
- プチホテル リージェントハウス Hotel 1.4 km
- ペンションぽかぽか Hotel 1.4 km
Accommodation data: OpenStreetMap
More places to look
What we have measured at Marunuma Kogen Ski Resort
- Which of Japan's 100 Famous Mountains Have a Ski Area? We matched Fukada's 1964 list against 397 Japanese ski areas. Above 2,500 m, 88% of the volcanoes have a ski area within 10 km and only 19% of everything else does — and no lift on the list reaches a summit but one.
Updated: 8 Oct 2026, 00:52