Shiwaku Islands Islands
Archipelago in the Seto Inland Sea, fishing communities
A scatter of islands in the Seto Inland Sea, the Shiwaku Islands attract ferry-hopping visitors for fishing-village scenes, seafood, coastal cycling and short sea crossings that reveal calm waters and shoreline farms.
Shiwaku Islands at a Glance#
Address: Shiwaku Islands, Seto Inland Sea, Kagawa Prefecture, Japan
About Shiwaku Islands#
The Shiwaku Islands are a group of small islands in the Seto Inland Sea under Kagawa Prefecture administration, distributed between Honshu and Shikoku. They form part of the archipelago of islands within the inland sea.
The archipelago has a long maritime history tied to coastal navigation, fishing, and island-based ship crews active in regional trade. Settlement patterns and local economies have traditionally been oriented to the sea.
The islands lie in the eastern Seto Inland Sea off the coast of Kagawa Prefecture, between the larger islands of Honshu and Shikoku and within Japan’s inner sea network.
- Maritime character: A dispersed archipelago in the Seto Inland Sea administered by Kagawa Prefecture, traditionally associated with fishing and coastal navigation.
How to Get to Shiwaku Islands#
Ferry services link the Shiwaku Islands with Takamatsu and other Seto Inland Sea piers-check local timetables for specific islands. Private boat charters are also possible.
Tips for Visiting Shiwaku Islands#
- Use the ferry from Takamatsu to reach several of the Shiwaku Islands-check schedules as services vary by island and season.
- Visit small island workshops to see traditional salt-making and boatbuilding crafts-call ahead where possible.
- Bring cash-many island vendors do not accept cards and ATMs are rare.
Best Time to Visit Shiwaku Islands#
Spring through autumn for the best boat conditions and island activities.
Weather & Climate near Shiwaku Islands#
Shiwaku Islands's climate is classified as Humid Subtropical - Humid Subtropical climate with hot summers (peaking in August) and cold winters (coldest in February). Temperatures range from 1°C to 30°C. Abundant rainfall (1427 mm/year), wettest in June.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Acceptable | 1° - 8° | 1° | 36 mm | overcast | 79% | 4.5 m/s | 0.4 low | 10.0h |
| February | Poor | 1° - 8° | 1° | 54 mm | overcast | 78% | 4.1 m/s | 0.6 moderate | 10.8h |
| March | Acceptable | 3° - 11° | 4° | 88 mm | partly cloudy | 76% | 3.9 m/s | 0.9 moderate | 11.8h |
| April | Good | 8° - 16° | 12° | 142 mm | partly cloudy | 76% | 4.2 m/s | 1.2 high | 12.9h |
| May | Good | 13° - 21° | 17° | 149 mm | partly cloudy | 77% | 3.3 m/s | 1.5 very high | 13.8h |
| June | Good | 17° - 24° | 21° | 232 mm | overcast | 81% | 3.3 m/s | 1.5 very high | 14.3h |
| July | Good | 22° - 29° | 25° | 198 mm | overcast | 84% | 4.4 m/s | 1.8 very high | 14.1h |
| August | Very Good | 23° - 30° | 26° | 106 mm | partly cloudy | 80% | 5.3 m/s | 1.8 very high | 13.3h |
| September | Good | 20° - 26° | 23° | 211 mm | overcast | 80% | 3.8 m/s | 1.3 high | 12.3h |
| October | Good | 14° - 21° | 17° | 113 mm | partly cloudy | 79% | 3.3 m/s | 0.9 moderate | 11.2h |
| November | Good | 9° - 15° | 12° | 68 mm | partly cloudy | 79% | 3.6 m/s | 0.5 moderate | 10.2h |
| December | Acceptable | 3° - 11° | 4° | 30 mm | overcast | 79% | 3.9 m/s | 0.3 low | 9.7h |