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Weather & Climate in Setouchi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Setouchi enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 40°F in January while summers reach 79°F in July. The area gets 235 sunny days per year, above the national average. Annual precipitation totals 55.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 26 feet.
Temperature
40°F Jan (4°C)
79°F Jul (26°C)
| Annual Average | 59.1°F |
| 9% above US avg | |
| January Average | 40°F (4°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 235 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 104.4 sq mi (270.5 km²) |
| Population Density | 345/sq mi |
| Coordinates | 34.6592°N, 134.1424°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
211 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.9.
| Jan 16, 1995 | 8 km S of Akashi, Japan | M6.9 | 81 km | 22 km |
| Oct 6, 2000 | 8 km ESE of Matsue, Japan | M6.7 | 128 km | 10 km |
| Apr 11, 1990 | 11 km ENE of Maizuru, Japan | M6.1 | 150 km | 362 km |
| Apr 12, 2013 | 6 km WNW of Sumoto, Japan | M5.8 | 71 km | 14 km |
| Aug 20, 1999 | 22 km SE of Kainan, Japan | M5.7 | 136 km | 66 km |
| Jun 17, 2018 | near the south coast of western Honshu, Japan | M5.5 | 138 km | 10 km |
| Aug 28, 1991 | 9 km SSW of Yasugich?, Japan | M5.5 | 114 km | 13 km |
| Oct 8, 2000 | 32 km N of Sh?bara, Japan | M5.4 | 114 km | 10 km |
| Sep 24, 2003 | 5 km WNW of Ayabe, Japan | M5.4 | 121 km | 372 km |
| Sep 16, 2002 | 24 km SW of Kurayoshi, Japan | M5.3 | 80 km | 10 km |
| Jan 11, 2001 | 15 km E of Tottori, Japan | M5.3 | 94 km | 33 km |
| Sep 3, 1997 | 21 km S of Yasugich?, Japan | M5.3 | 105 km | 10 km |
| Mar 13, 2019 | 22 km ESE of Anan, Japan | M5.2 | 115 km | 37 km |
| Oct 8, 2000 | 8 km SSW of Yonago, Japan | M5.2 | 109 km | 10 km |
| Apr 26, 2007 | 15 km ESE of Niihama, Japan | M5.1 | 105 km | 50 km |
| Jul 5, 2011 | 12 km NNW of Gob?, Japan | M5.0 | 118 km | 16 km |
| Jan 16, 1995 | 20 km SW of Akashi, Japan | M5.0 | 64 km | 10 km |
| Aug 22, 1994 | 39 km S of Anan, Japan | M4.9 | 129 km | 38 km |
| Sep 28, 1990 | 24 km NNW of Kariya, Japan | M4.9 | 33 km | 26 km |
| Feb 21, 2011 | 12 km NNW of Tanabe, Japan | M4.9 | 142 km | 55 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
45 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2023 | Lan | Category 2 | 81 mph | 179 km |
| 2018 | Jebi | Category 3 | 98 mph | 80 km |
| 2018 | Trami | Category 1 | 92 mph | 157 km |
| 2018 | Cimaron | Category 1 | 86 mph | 51 km |
| 2018 | Jongdari | Category 1 | 75 mph | 271 km |
| 2017 | Noru | Category 1 | 69 mph | 115 km |
| 2016 | Malakas | Category 1 | 86 mph | 215 km |
| 2015 | Goni | Category 1 | 81 mph | 293 km |
| 2015 | Nangka | Category 1 | 81 mph | 185 km |
| 2014 | Phanfone | Category 2 | 92 mph | 218 km |
| 2014 | Halong | Category 1 | 81 mph | 200 km |
| 2012 | Jelawat | Category 1 | 92 mph | 240 km |
| 2011 | Roke | Category 3 | 98 mph | 252 km |
| 2011 | Ma-on | Category 1 | 86 mph | 125 km |
| 2009 | Melor | Category 1 | 86 mph | 237 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 218 km |
| 2007 | Usagi | Category 2 | 92 mph | 231 km |
| 2007 | Man-yi | Category 1 | 81 mph | 251 km |
| 2005 | Nabi | Category 1 | 75 mph | 264 km |
| 2004 | Songda | Category 2 | 86 mph | 191 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
8 tsunamis recorded within 500 km. Highest wave on record: 11.3 m (37 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1927 | SW. HONSHU ISLAND | Eruption + Earthquake | 11.3 m | 3,022 | 136 km |
| 1711 | SEIONAIKAI, JAPAN | Earthquake | 2.0 m | 1,000 | 42 km |
| 1510 | OSAKA BAY | Earthquake | 2.0 m | - | 115 km |
| 1808 | E. AWA, TOKUSHIMA PREFECTURE | Earthquake | 1.5 m | - | 104 km |
| 1995 | KOBE, JAPAN | Earthquake | 0.3 m | 6,434 | 85 km |
| 1791 | OASAKA BAY | Earthquake | - | - | 117 km |
| 1331 | OFF TANABE, WAKAYAMA PREFECTURE | Earthquake | - | - | 144 km |
| 745 | OSAKA BAY, JAPAN | Earthquake | - | - | 106 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Sanbesan (149 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Sanbesan | Stratovolcano | 1,126 m (3,694 ft) | 650 | 149 km |
| Oki-Dogo | Shield | 151 m (495 ft) | Unknown | 184 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (4°C) | 1.5 in | Coldest |
| February | 40°F (5°C) | 2.1 in | |
| March | 45°F (7°C) | 3.5 in | |
| April | 56°F (13°C) | 5.4 in | |
| May | 64°F (18°C) | 5.6 in | |
| June | 71°F (22°C) | 8.7 in | |
| July | 79°F (26°C) | 7.6 in | |
| August | 81°F (27°C) | 4.4 in | Warmest |
| September | 74°F (23°C) | 8.7 in | Wettest |
| October | 63°F (17°C) | 4.3 in | |
| November | 53°F (12°C) | 2.7 in | |
| December | 44°F (7°C) | 1.2 in | Driest |
Setouchi has a seasonal temperature swing of 41°F / from 40°F in January to 81°F in August. Total annual precipitation is 55.7 inches, with September being the wettest month (8.7") and December the driest (1.2").