Rishiri-Rebun-Sarobetsu National Park National Park

Northern Japan national park of islands, volcanic peaks, wetlands

Encompassing Rishiri and Rebun islands and the Sarobetsu marshes, the park offers coastal cliffs, alpine meadows and hikes up Rishiri's conical peak; visitors come for flower seasons, seabird watching and boat trips off Hokkaido's northwest coast.

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Rishiri-Rebun-Sarobetsu National Park at a Glance#

Address: Rishiri-Rebun-Sarobetsu National Park, Japan

Website: https://www.env.go.jp/en/nature/nps/park/parks/rishiri.html

About Rishiri-Rebun-Sarobetsu National Park#

Rishiri-Rebun-Sarobetsu National Park is a national park in northern Hokkaido, Japan, combining island volcanic terrain and coastal wetlands; it was designated as a national park in 1967.

The park comprises three distinct landscapes. The steep volcanic cone of Mount Rishiri rises to 1,721 metres on Rishiri Island and is a focal point for day hikes and panoramic views. Rebun Island is known for its coastal cliffs and extensive alpine flower fields that bloom in summer, while the Sarobetsu Plain is a low-lying peatland and coastal wetland important for birdlife.

The park was created under Japan’s national park system to protect these contrasting ecosystems and to manage recreation on the islands and mainland wetlands. Management emphasises balancing visitor access with conservation of alpine flora on Rebun and peatland habitats in Sarobetsu.

Geographically the park spans the far northwest of Hokkaido - Rishiri and Rebun lie off the Hokkaido coast in the Sea of Japan, while Sarobetsu occupies a coastal plain on the mainland. Wakkanai is the regional gateway for boat and transport links to the islands.

  • Access: Ferries operate seasonally from Wakkanai to Rishiri and Rebun, with the main visitor season in summer when alpine flowers bloom and hiking routes are fully open.
  • Best viewpoint: Summit of Mount Rishiri reaches 1,721 metres and provides the clearest panoramic view across the Sea of Japan on good weather days.

What to See#

  • Park areas: Covers three distinct areas: island volcanic terrain on Rishiri with a steep central peak, coastal and alpine flower landscapes on Rebun, and the low-lying Sarobetsu peat-plain and wetlands on the Hokkaido mainland.

How to Get to Rishiri-Rebun-Sarobetsu National Park#

Access depends on which island or area weathers: ferries serve Rebun and Rishiri from Wakkanai; Sarobetsu is reached by road and local bus from Wakkanai and other Hokkaido centers. Seasonal ferry and bus timetables apply.

Tips for Visiting Rishiri-Rebun-Sarobetsu National Park#

  • Bring layers and windproof clothing - alpine ridges are exposed and wind chill can be intense even in summer.
  • Take the ferry or train connections to Wakkanai and then onward by local transport to reach park trailheads.
  • Look for the alpine flora of Rebun and the dramatic flower meadows on Rishiri during late June and July.

Best Time to Visit Rishiri-Rebun-Sarobetsu National Park#

June-August is best for hiking and wildflowers; arrive earlier in summer to beat local crowds.

Summer (wildflower season)
June-August · 8-20°C
Peak season for alpine flowers on Rebun and clear views of Rishiri; good for hiking.
Spring/Autumn
May & Sept-Oct · 2-15°C
Fewer visitors; expect cooler temperatures and some rain.

Weather & Climate near Rishiri-Rebun-Sarobetsu National Park#

Climate

Rishiri-Rebun-Sarobetsu National Park's climate is classified as Subarctic - Subarctic climate with mild summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -12°C to 20°C. Abundant rainfall (1203 mm/year), wettest in August.

Air Quality: AQI 41 Good
Best Time to Visit
SeptemberAugustJuly
Temperature & Rainfall
Temperature Range
26°
Warmest Month
-12°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -12° - -7° -18° 95 mm overcast 82% 6.8 m/s 0.1 low 9.0h
February Poor -12° - -6° -18° 68 mm overcast 80% 6.3 m/s 0.2 low 10.2h
March Poor -9° - -3° -13° 65 mm overcast 77% 5.7 m/s 0.4 low 11.8h
April Poor -2° - 3° -5° 64 mm overcast 82% 5.8 m/s 0.8 moderate 13.4h
May Poor 2° - 9° 2° 77 mm overcast 87% 5.5 m/s 1.1 high 14.7h
June Acceptable 7° - 14° 11° 74 mm overcast 89% 4.6 m/s 1.3 high 15.4h
July Acceptable 12° - 18° 15° 108 mm overcast 90% 4.4 m/s 1.4 high 15.1h
August Good 14° - 20° 17° 139 mm overcast 86% 4.5 m/s 1.3 high 13.9h
September Good 10° - 16° 13° 139 mm partly cloudy 77% 4.9 m/s 0.9 moderate 12.4h
October Acceptable 4° - 10° 3° 135 mm partly cloudy 73% 5.9 m/s 0.4 low 10.8h
November Poor -3° - 2° -6° 127 mm overcast 77% 6.5 m/s 0.1 low 9.4h
December Poor -8° - -4° -13° 112 mm overcast 82% 6.7 m/s 0.1 low 8.6h

Nearby Attractions to Rishiri-Rebun-Sarobetsu National Park#