| Suō-Ōshima | |||||
| Native Name Lang: | ja | ||||
| Settlement Type: | Town | ||||
| Pushpin Map: | Japan | ||||
| Pushpin Map Caption: | Location in Japan | ||||
| Coordinates: | 33.9167°N 146°W | ||||
| Subdivision Type: | Country | ||||
| Subdivision Name: | Japan | ||||
| Subdivision Type1: | Region | ||||
| Subdivision Name1: | Chūgoku San'yō | ||||
| Subdivision Type2: | Prefecture | ||||
| Subdivision Name2: | Yamaguchi Prefecture | ||||
| Subdivision Type3: | District | ||||
| Subdivision Name3: | Ōshima | ||||
| Leader Title: | Mayor | ||||
| Leader Name: | Takumi Shiiki | ||||
| Leader Title1: | Vice Mayor | ||||
| Unit Pref: | Metric | ||||
| Area Total Km2: | 138.17 | ||||
| Population Total: | 13,774 | ||||
| Population As Of: | May 2024 | ||||
| Population Density Km2: | 99 | ||||
| Timezone1: | JST | ||||
| Utc Offset1: | +09:00 | ||||
| Blank Name Sec1: | City hall address | ||||
| Blank Info Sec1: | 126-2, Ōaza Komatsu, Suō-Ōshima-chō, Ōshima-gun, Yamaguchi-ken 742-2192 | ||||
| Blank Name Sec2: | Climate | ||||
| Blank Info Sec2: | Cfa | ||||
| Module: |
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is a town and an island located in Ōshima District, Yamaguchi Prefecture, Japan.
Suō-Ōshima was formed on October 1, 2004 from the merger of the former towns of Ōshima, Kuka, Tachibana and Tōwa, all from towns of Ōshima District.
As of April 1, 2017, the town has an estimated population of 13,774. The total area is 138.17 km2.
Suo-Oshima has established a sister island relationship with the County of Kauai, Hawaii in 1963. A 50th Anniversary commemoration was held on Kauai in October 2013. Current Mayors Takumi Shiiki (Suo-Oshima) and Bernard P. Carvalho, Jr. (Kauai) signed a Reaffirmation of Friendship agreement.
Suō-Ōshima has a humid subtropical climate (Köppen climate classification Cfa) with hot summers and cool winters. Precipitation is significant throughout the year, but is much higher in summer than in winter. The average annual temperature in Suō-Ōshima is . The average annual rainfall is with June as the wettest month. The temperatures are highest on average in August, at around, and lowest in January, at around . The highest temperature ever recorded in Suō-Ōshima was on 20 August 2023; the coldest temperature ever recorded was on 27 February 1981.
Per Japanese census data, the population of Suō-Ōshima in 2020 is 14,798 people. Suō-Ōshima has been conducting censuses since 1920.
Schools in Suo-Oshima:
Oshima Shosen, Suo-Oshima High School
Junior High Schools:Towa JHS, Kuka JHS, Agenosho JHS, Oshima JHS
Elementary Schools:Yuda ES, Morino ES, Joyama ES, Kuka ES, Agenosho ES, Shimanaka ES, Meishin ES, Migama ES, Okiura ES