Yaku-shima Island

Island of ancient cedar forests and rich biodiversity

Yakushima is an island south of Kyushu known for ancient cedar forests-including Jōmon Sugi-humid mountain trails, heavy rainfall, and UNESCO recognition that draws hikers and nature photographers.

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Yaku-shima at a Glance#

Address: Yakushima, Kagoshima Prefecture, Japan

Website: https://www.pref.kagoshima.jp/ae07/kurashi/3500.html (prefectural info)

Admission: No national park entry fee; some trail permits and ferry/boat costs apply

About Yaku-shima#

Yakushima is a forested island in Kagoshima Prefecture known for its ancient cedar forests, high rainfall and rugged mountain interior. The island’s ecology includes internationally significant Yakusugi cedars and a mix of temperate and subtropical ecosystems.

Key natural attractions include ancient cedars such as Jōmon Sugi, moss-covered ravines like Shiratani Unsuikyo and Mount Miyanoura, the island’s highest point at about 1,936 metres. The landscape supports endemic plants and wildlife and offers hiking routes from short circuits to multi-day backcountry treks.

Human settlement on Yakushima is longstanding but sparse; the island’s forests were logged in the past and later protected, leading to its inscription as a UNESCO Natural World Heritage Site in 1993. Conservation and sustainable tourism are prominent aspects of contemporary management.

Yakushima lies off the southern coast of Kyushu in Kagoshima Prefecture, about 60 km south of the Kyushu mainland. The main entry points are ferry and air services to the island’s ports and small airport, and the interior is mountainous with limited road access to trailheads.

  • World Heritage status: The island is a UNESCO Natural World Heritage Site noted for its ancient cedar forests, heavy rainfall and unique biodiversity.
  • Trail and access note: Trails range from short walks to multi-day hikes; prepare for wet weather and steep, muddy terrain, and check transport schedules to/from the main ferry and air links.

What to See#

  • Jōmon Sugi: Jōmon Sugi - an ancient Yakusugi cedar on the island’s central ridges, estimated at between about 2,000 and 7,000 years old and a primary draw for hikers.
  • Shiratani Unsuikyo Ravine: Shiratani Unsuikyo - a mossy, forested ravine with well-maintained trails and valleys that inspired studio animator works and is popular for day hikes.
  • Mount Miyanoura: Mount Miyanoura - the island’s highest peak at roughly 1,936 metres, commonly climbed by multi-day routes offering alpine and forest scenery.

How to Get to Yaku-shima#

Most visitors reach Yakushima by air from Kagoshima Airport (about 40 minutes) to Yakushima Airport (JAC). Ferries also run from Kagoshima Port to Miyanoura or Anbō (2.5-4 hours depending on service). Local buses connect ports/airports to trailheads such as Shiratani Unsuikyo and Jōmon Sugi parking areas.

Tips for Visiting Yaku-shima#

  • Take the ferry from Anbō Port or Tanegashima ferry connections - check schedules, as crossings are infrequent.
  • Hike the Shiratani Unsuikyo early: dawn mist transforms the mossy cryptomeria into a cinematic forest.
  • Bring waterproof boots and a warm layer; rainfall is high year-round.
  • Respect the island's resident deer and macaques: keep distance and don't feed wildlife.

Best Time to Visit Yaku-shima#

Best visited in spring and autumn for trekking and sea access; ferry schedules and frequent rain make logistics the decisive factor.

Spring
Mar-May · 12-22°C (54-72°F)
Wildflowers and manageable rainfall; good for trekking.
Autumn
Sep-Nov · 18-24°C (64-75°F)
Warm seas and clearer skies; lower typhoon risk than late summer.
Winter
Dec-Feb · 6-14°C (43-57°F)
Cool on the summits; snow dusts the higher ridges, offering dramatic contrasts.

Weather & Climate near Yaku-shima#

Climate

Yaku-shima's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in January). Temperatures range from -2°C to 22°C. Heavy rainfall (3565 mm/year), wettest in June.

Air Quality: AQI 50 Good
Best Time to Visit
AugustJulySeptember
Temperature & Rainfall
Temperature Range
32°
Warmest Month
6°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -2° - 4° -5° 154 mm overcast 75% 8.9 m/s 0.5 moderate 10.3h
February Poor -1° - 5° -4° 186 mm overcast 74% 8.1 m/s 0.8 moderate 11.0h
March Poor 1° - 8° 0° 261 mm overcast 73% 7.3 m/s 1.1 high 11.9h
April Poor 6° - 12° 6° 319 mm overcast 74% 6.6 m/s 1.4 high 12.8h
May Acceptable 10° - 15° 12° 410 mm overcast 78% 5.7 m/s 1.6 very high 13.6h
June Acceptable 13° - 18° 16° 581 mm overcast 86% 5.6 m/s 1.5 very high 13.9h
July Good 16° - 22° 19° 456 mm partly cloudy 85% 5.4 m/s 2.1 extreme 13.8h
August Good 16° - 22° 19° 380 mm partly cloudy 81% 5.5 m/s 2.1 extreme 13.1h
September Acceptable 14° - 19° 17° 306 mm partly cloudy 79% 6.0 m/s 1.6 very high 12.2h
October Acceptable 10° - 16° 13° 200 mm partly cloudy 74% 6.9 m/s 1.1 high 11.3h
November Poor 5° - 11° 5° 176 mm overcast 73% 7.6 m/s 0.7 moderate 10.5h
December Poor 1° - 7° -2° 136 mm overcast 74% 8.8 m/s 0.5 low 10.1h

Nearby Attractions to Yaku-shima#