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Ōmihachiman, Japan

Full City Profile

4.2 /5.0
A Great
82,233 Population 2,767/sq mi density
299 ft Elevation 91 meters
58°F Avg Temperature 15°C
A
Overall
4.2 / 5.0
Strong
B
Economy
3.3 / 5.0
$33,800 median income, 2.3% unemployment
A+
Affordability
5.0 / 5.0
$88,000 home value, $440/mo rent
Ōmihachiman enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 39°F in January while summers reach 78°F in July. The area gets 220 sunny days per year. Annual precipitation totals 64.2 inches. The area receives 0.0 inches of snow annually.

Temperature

39°F Jan (4°C) 78°F Jul (26°C)
Annual Average58.3°F
8% above US avg
January Average39°F (4°C)
July Average78°F (26°C)
Sunny Days220 days/yr

Geography

Elevation299 ft (91 m)
Area29.7 sq mi (77.0 km²)
Population Density2,767/sq mi
Coordinates35.1286°N, 136.0976°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 64.2"
69% above US avg
Snowfall 0.0"
Wettest Month (Jun) 9.09"
Driest Month (Dec) 2.60"

Air Quality

Earthquake History

434 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.9. Most recent: M4.1 on Aug 24, 2025.

Jan 16, 1995 8 km S of Akashi, Japan M6.9 116 km
Apr 11, 1990 11 km ENE of Maizuru, Japan M6.1 70 km
Aug 7, 1992 21 km N of Miyazu, Japan M5.8 109 km
Jun 1, 1998 17 km SW of Owase, Japan M5.8 132 km
Apr 12, 2013 6 km WNW of Sumoto, Japan M5.8 144 km
Aug 20, 1999 22 km SE of Kainan, Japan M5.7 138 km
Mar 16, 1997 5 km NE of Toyokawa, Japan M5.6 127 km
Nov 18, 2013 25 km SE of Toba, Japan M5.6 124 km
Apr 21, 2000 27 km NNE of Maizuru, Japan M5.5 82 km
Aug 1, 2007 42 km ESE of Owase, Japan M5.5 144 km
Oct 30, 2000 western Honshu, Japan M5.5 93 km
Jun 17, 2018 near the south coast of western Honshu, Japan M5.5 54 km
Aug 26, 2010 25 km ENE of Katsuyama, Japan M5.4 126 km
Sep 24, 2003 5 km WNW of Ayabe, Japan M5.4 85 km
May 9, 2022 7 km NE of Toba, Japan M5.3 98 km
Jan 6, 2004 36 km S of Ise, Japan M5.3 120 km
Jan 30, 1996 67 km NNE of Miyazu, Japan M5.2 130 km
Apr 22, 1998 18 km SE of Hikone, Japan M5.2 29 km
Mar 16, 1999 10 km WNW of Kitahama, Japan M5.1 27 km
Apr 15, 2007 11 km ENE of Ueno-ebisumachi, Japan M5.1 38 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

47 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Lan (2023).

Year Name Category Closest
2023 Lan Category 2 163 km
2019 Faxai Category 4 289 km
2019 Hagibis Category 2 245 km
2018 Jebi Category 2 61 km
2018 Trami Category 1 158 km
2018 Cimaron Category 1 140 km
2018 Jongdari Category 1 115 km
2017 Lan Category 1 217 km
2017 Noru Category 1 155 km
2015 Nangka Category 1 289 km
2014 Phanfone Category 1 147 km
2011 Roke Category 3 146 km
2011 Ma-on Category 1 219 km
2009 Melor Category 1 134 km
2008 Sinlaku Category 1 196 km
2007 Fitow Category 1 256 km
2005 Mawar Category 2 229 km
2004 Ma-on Category 4 221 km
2004 Songda Category 1 279 km
2004 Chaba Category 1 173 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

11 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 3,022 105 km
1510 OSAKA BAY Earthquake 2.0 m 87 km
1909 ANEGAWA, JAPAN Earthquake 1.8 m 41 35 km
1945 TOKAIDO Earthquake 1.0 m 2,306 111 km
1995 KOBE, JAPAN Earthquake 0.3 m 6,434 111 km
1791 OASAKA BAY Earthquake 95 km
1726 KATSUYAMA Earthquake 131 km
1666 AICHI PREFECTURE Earthquake 66 km
1586 ISE BAY Earthquake 8,000 66 km
745 OSAKA BAY, JAPAN Earthquake 94 km
701 SEA OF JAPAN Earthquake 90 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

5 volcanoes within 200 km. Closest: Hakusan (129 km).

Name Type Elevation Last Eruption Distance
Hakusan Stratovolcano 2,702 m (8,865 ft) 1659 129 km
Ontakesan Complex 3,067 m (10,062 ft) 2014 151 km
Norikuradake Stratovolcano(es) 3,026 m (9,928 ft) -50 171 km
Yakedake Stratovolcano(es) 2,455 m (8,054 ft) 1995 182 km
Washiba-Kumonotaira Shield(s) 2,924 m (9,593 ft) Unknown 196 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 39°F (4°C) 3.1 in Coldest
February 39°F (4°C) 3.4 in
March 44°F (7°C) 4.6 in
April 55°F (13°C) 5.8 in
May 63°F (17°C) 5.9 in
June 71°F (22°C) 9.1 in Wettest
July 78°F (26°C) 8.6 in
August 80°F (27°C) 5.4 in Warmest
September 73°F (23°C) 7.8 in
October 62°F (17°C) 4.8 in
November 52°F (11°C) 3.3 in
December 43°F (6°C) 2.6 in Driest

Ōmihachiman has a seasonal temperature swing of 42°F / from 39°F in January to 80°F in August. Total annual precipitation is 64.2 inches, with June being the wettest month (9.1") and December the driest (2.6").

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