🇯🇵 Japan · Nagano

Mia Ski Resort

開田高原マイアスキー場
10 / 100 Powder Score
No Snow 🌤️ Official site

Mia Ski Resort is a ski area in Nagano, Japan. The terrain spans roughly 1542–2150 m above sea level. The mapped ski area covers about 3.0 km². Within 2.5 km of the centre, the map shows 5 marked runs and 3 lifts, totalling about 6.5 km of piste. There is no settled snow at the moment — the season has not started here yet. Over the last three winters the ERA5 reanalysis gives it 225 cm of snowfall a season, 901st (tied) of the 3,112 ski areas we measure worldwide. The model runs well below what resorts report, so the ranking is the meaningful part rather than the centimetre figure. 1 official live camera is linked below. 83 other ski areas lie within 120 km. Snow figures and the Powder Score are recalculated every day.

Base depth
0cm
Snow 24h
0cm
Snow 48h
0cm
Next 24h
0cm
Next 72h
0cm
Temperature
13.6℃
Max wind
8.2km/h
Elevation (est.)
1542–2150m
Area
3.0km²

Elevation range is estimated by sampling points across the ski area.

Score breakdown

Fresh (48h) 0/40
Forecast (24h) 0/25
Snow quality 0/20
Wind 10/10
Base 0/5

Powder Score v1.0.0

7-day outlook

Date Snow Temp Wind
🌦️ 27 Sept 0 11.3 / 15.3 6.9
🌧️ 28 Sept 0 10 / 14.5 10.6
🌧️ 29 Sept 0 9.6 / 11.7 6.3
☁️ 30 Sept 0 4 / 18.5 6.5
🌤️ 1 Oct 0 7 / 16.7 10.7
☁️ 2 Oct 0 0.2 / 10.4 14.7
🌤️ 3 Oct 0 0.4 / 12.4 6.5

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
5
Run length
6.5km
Lifts
3
Vertical
563m
Top 2,121 m · base 1,558 m

Run map

EasyIntermediate 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.

The shape of the mountain

Longest run on the map1.8 km
Steepest pitch29°measured over at least 30 m
Average gradient of the runs10°

Which way the slopes face

North 15%
East 82%
South 3%
West 0%

97% of the vertical on the runs descends to the north or east. Those slopes get the least sun, so the snow lasts longer.

By difficulty

Easy 2
Intermediate 3

Lift types

  • Chairlift3

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

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

Road conditions decide whether you can get there at all. Check before you leave.

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

How much snow it gets

Measured by us across 3,112 ski areas by one identical method. These are not the resort’s own published figures.

Seasonal snowfall
225 cm
per season
Range over three winters
75 cm
191–266 cm. The best winter was 1.4x the worst.
World rank
901
of 3,112 worldwide
Rank in country
248
of 395 in Japan
Elevation rank
9
Highest to lowest, of 395 in Japan. The centre point sits at 1,786 m, 1,033 m above the national median.
Quality rank
120
of 395 in Japan
Temp when snowing
-8.2°C
Japanese median: -3.5°C
Rain days
15%
Japanese median: 16%
Days over 5 cm
10%
Japanese median: 15%
Wind when snowing
18 km/h
Dryness 0.73
Frequency 0.30
Freedom from rain 0.61
Calm when snowing 0.97

The tick marks the median across the 395 Japanese ski areas. 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 areaDistanceSeasonal snowfallWorld rank
Kisofukushima Ski Resort15 km209 cm996
Yabuhara Kogen20 km166 cm1385
Blue Resort Norikura23 km303 cm470
Shinshu-Matsumoto Nomugitoge Ski Resort23 km303 cm470
Hida Takayama Municipal Ski Resort25 km334 cm349

When it falls, and how winters differ

Month by month

Month by month, the most snow falls in January. March brings 87% of January’s snowfall. That is a gentler fall than the median for ski areas in Japan (51%). In amount, March brings 60 cm, more than the median of 45 cm.

54cm
Dec
69cm
Jan
62cm
Feb
60cm
Mar
Average snowfall by month, last 11 winters

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 28 °C).

SourceDistanceTemperaturepHTypeAnalysed
湯川温泉3.8 km28℃ lukewarm5.9 mildly acidic—1985

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.

PlaceTypeDistance
Mount Ontake御嶽山Mountain5 km
Ontake Prefectural Natural Park御岳県立公園Nature5 km
Nigorigo Onsen濁河温泉Hot spring town6.2 km
Neo Falls根尾の滝Nature13 km
Nomugi Pass野麦峠Mountain16 km
Fukushima-juku福島宿 (中山道)Old streets18.7 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 ↗

Places to stay nearby

3 properties on Rakuten Travel lie within 3 km of this ski area, listed cheapest first.

Press it and Rakuten Travel shows what is free on those dates across the properties listed here. Picking a property below does the same for that one property.

PropertyFromRatingDistanceGetting there
信州・開田高原 天空の宿 京こじま¥6,7102.50 59 reviews—木曽福島駅からマイアスキー場迄バスで1時間、塩尻I.Cから国道19号~361号経由約90分。
信州・木曽・御嶽山 開田高原 ペンション遊基地¥9,5004.40 44 reviews—JR中央線 木曽福島駅よりお車で約45分 / 中央道 伊那I.CよりR19号〜R361号経由で約80分
ペンション 山のくじら家—4.50 30 reviews—JR中央本線木曽福島駅から開田高原までバスで1時間。

Contains advertising · Property data by Rakuten Travel (Supported by Rakuten Developers)

Stay nearby

7 places within 12 km of the slopes. Most of them do not take online bookings — open the map for contact details.

5 Hotel 2 Guest house

Nearest: 3.7 km

Nearest first

Accommodation data: OpenStreetMap

More places to look

Updated: 26 Sept 2026, 23:28

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