Shiga Highlands Amusement Park

Mountainous highland area in Nagano, scenic alpine scenery

In Nagano's high country, Shiga Highlands (Shiga Kōgen) is a major ski area with linked resorts, alpine marshes and summer hiking trails. Visitors come for downhill skiing, cross-country routes, onsens and access to Joshin'etsu-Kōgen National Park.

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Shiga Highlands at a Glance#

About Shiga Highlands#

Shiga Highlands (commonly known as Shiga Kogen) is a broad highland and resort area in Nagano Prefecture, Japan, located within the Joshinetsu Kogen National Park. It is one of the main highland and ski regions of central Honshu.

The area comprises an interconnected cluster of ski zones and mountain plateaus with trails for summer hiking and winter skiing. Much of the terrain lies above 1,300 meters, and the region is served by hot-spring towns that act as bases for visitors. The nearby Jigokudani Monkey Park is a frequent paired visit for travelers based in the highlands.

The modern resort infrastructure was developed in the 20th century for winter sports and year-round mountain recreation, while the highland itself is a natural plateau shaped by alpine processes. The site is managed in coordination with the national park for conservation and tourism uses.

The highlands sit in northern Nagano Prefecture around the town of Yamanouchi, in central Honshu. The landscape is a mix of broad plateaus, volcanic ridges and valleys within the greater Joshinetsu Kogen highland system.

  • Elevation: Much of the highland sits above 1,300 meters, giving it a long winter snow season and alpine vegetation at higher elevations.
  • Nearby attraction: Jigokudani Monkey Park, where wild Japanese macaques bathe in hot springs, is located close to the highlands and is commonly visited on the same trip.

What to See#

  • Shiga Highlands (Shiga Kogen) area: A broad highland plateau and resort area in Nagano Prefecture that forms part of Joshinetsu Kogen National Park and the greater highland zone of central Honshu.
  • Yamanouchi / Yudanaka onsen area: The developed ski and hiking zones clustered around the village and town of Yamanouchi, with nearby hot-spring towns serving as bases for visitors.

How to Get to Shiga Highlands#

Shiga Kogen is accessible by bus from Nagano City (about 1-2 hours). Many visitors travel via Nagano Station (served by JR lines and the Hokuriku Shinkansen) and then use shuttle buses to the Shiga Kogen resorts and trailheads.

Tips for Visiting Shiga Highlands#

  • If visiting in winter for snow sports, pick accommodation in nearby towns like Nagano or Yamanouchi and check lift schedules.
  • For hiking, start early-alpine weather can change quickly and mountain huts fill on peak weekends.
  • Combine with a trip to nearby Onsens for sore muscles after a day on the trails.

Best Time to Visit Shiga Highlands#

Best late spring-autumn for hiking; winter for skiing and snow activities.

Summer (June-September)
Jun-Sep · 10-25°C
Alpine meadows and hiking season-clear trails and pleasant temperatures.
Winter (December-March)
Dec-Mar · -5-5°C
Heavy snow and skiing opportunities; excellent for winter sports enthusiasts.
Autumn (October-November)
Oct-Nov · 5-15°C
Crisp air and autumn colours-less crowded than peak summer and winter.

Weather & Climate near Shiga Highlands#

Climate

Shiga Highlands's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -12°C to 22°C. Abundant rainfall (1763 mm/year), wettest in August.

Air Quality: AQI 51 Moderate
Best Time to Visit
AugustJulySeptember
Temperature & Rainfall
Temperature Range
30°
Warmest Month
-15°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -12° - -3° -14° 61 mm partly cloudy 93% 5.0 m/s 0.3 low 9.8h
February Poor -12° - -2° -14° 69 mm partly cloudy 92% 5.0 m/s 0.5 moderate 10.7h
March Poor -9° - 1° -10° 93 mm partly cloudy 85% 4.8 m/s 0.8 moderate 11.8h
April Poor -2° - 8° -1° 129 mm partly cloudy 81% 5.5 m/s 1.2 high 13.0h
May Acceptable 3° - 14° 6° 145 mm partly cloudy 80% 4.5 m/s 1.5 high 14.0h
June Acceptable 8° - 17° 13° 217 mm overcast 84% 3.9 m/s 1.5 very high 14.5h
July Acceptable 13° - 21° 17° 240 mm overcast 86% 3.8 m/s 1.6 very high 14.2h
August Good 14° - 22° 18° 265 mm overcast 86% 4.0 m/s 1.6 very high 13.4h
September Acceptable 10° - 18° 14° 252 mm overcast 87% 4.0 m/s 1.2 high 12.3h
October Acceptable 3° - 12° 5° 145 mm partly cloudy 88% 4.3 m/s 0.8 moderate 11.1h
November Poor -3° - 7° -2° 92 mm partly cloudy 89% 5.0 m/s 0.5 low 10.1h
December Poor -8° - 1° -9° 55 mm partly cloudy 91% 4.6 m/s 0.3 low 9.6h

Nearby Attractions to Shiga Highlands#