Oki Islands
Islands Remote Japanese island group with volcanic landscapes
The Oki Islands in the Sea of Japan form an archipelago of volcanic and coral coasts; visitors take ferries for coastal hikes, fishing villages, kayaking and UNESCO Geopark trails.
The Oki Islands are an archipelago in the Sea of Japan belonging to Shimane Prefecture, consisting of a larger main island and several smaller islands grouped geographically. The group is split into Dōgo (the large island) and the Dōzen island cluster and is known for coastal cliffs, tidal beaches and rural island communities.
Visitors use ferries and local boats to reach the inhabited islands, where activities focus on coastal walks, boat tours, sea kayaking and local seafood. Several islands have fishing ports, small museums and protected natural areas that attract boaters and nature-oriented visitors.
Historically the islands were used as a place of imperial exile in past centuries, and they retain cultural traditions distinct from the mainland. The archipelago sits off the Shimane coast in the northern reaches of the Seto Inland Sea / Sea of Japan maritime zone and is part of the prefectural island network.
- Access: The archipelago is administered as part of Shimane Prefecture and is accessible by scheduled ferries from the Honshu coast; ferry timetables vary seasonally.
- Character: The islands combine coastal geology, traditional fishing communities and rural tourism, with local seafood and small guesthouses common on the inhabited islands.
What to See #
- Dōgo: The largest island in the archipelago, serving as the administrative and transport hub with ferry connections to the smaller isles and the mainland.
- Dōzen group: A cluster of four main islands collectively forming the Dōzen group, noted for sea-cliff scenery, fishing villages and coastal hiking routes.
How to Get to Oki Islands #
Regular ferries and high-speed boats run from Sakaiminato (Tottori Prefecture) and other nearby ports; the Oki Airport on Dōgo Island has flights from Izumo and other regional airports. Ferries from Sakaiminato to Saigo Port on Dōgo take about 3-4 hours depending on the service.
Tips for Visiting Oki Islands #
- Ferries and passenger ships connect from Sakaiminato and other ports-check timetables seasonally.
- Rent a bike on Dōgo or Nishinoshima to explore smaller harbors and shrine sites.
- Bring cash; some islands have limited card acceptance and few ATMs.
Best Time to Visit Oki Islands #
Best visited in spring and autumn for mild weather and stable sea conditions.
Weather & Climate near Oki Islands #
Oki Islands's climate is classified as Humid Subtropical - Humid Subtropical climate with warm summers (peaking in August) and cold winters (coldest in February). Temperatures range from -1°C to 28°C. Abundant rainfall (1738 mm/year), wettest in September.
January
January is cold with highs of 6°C and lows of -1°C. Significant rainfall (170 mm) and mostly overcast skies.
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February
February is the coolest month with highs of 6°C and lows of -1°C. Significant rainfall (136 mm) and mostly overcast skies.
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March
March is cold with highs of 10°C and lows of 1°C. Significant rainfall (114 mm) and mostly overcast skies.
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April
April is cool with highs of 15°C and lows of 6°C. Significant rainfall (103 mm) and mostly overcast skies.
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May
May is cool with highs of 20°C and lows of 11°C. Significant rainfall (106 mm) and mostly overcast skies.
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June
June is mild with highs of 23°C and lows of 15°C. Significant rainfall (156 mm) and mostly overcast skies.
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July
July is mild with muggy conditions (dew point 22°C). Significant rainfall (189 mm) and mostly overcast skies.
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August
August is the warmest month with muggy conditions (dew point 24°C). Significant rainfall (134 mm) and partly cloudy skies.
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September
September is mild with highs of 24°C and lows of 17°C. The wettest month with heavy rain (208 mm) and mostly overcast skies.
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October
October is cool with highs of 19°C and lows of 11°C. Significant rainfall (127 mm) and mostly overcast skies.
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November
November is cool with highs of 14°C and lows of 6°C. Significant rainfall (142 mm) and mostly overcast skies.
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December
December is cold with highs of 9°C and lows of 2°C. Significant rainfall (153 mm) and mostly overcast skies.