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Karatsu, Japan

Full City Profile

4.1 /5.0
A Great
117,663 Population 625/sq mi density
23 ft Elevation 7 meters
61°F Avg Temperature 16°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.2 / 5.0
$27,400 median income, 2.3% unemployment
A+
Affordability
5.0 / 5.0
$68,000 home value, $340/mo rent
Karatsu enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 42°F in January while summers reach 78°F in July. The area gets 203 sunny days per year. Annual precipitation totals 73.4 inches. The area receives 0.0 inches of snow annually.

Temperature

42°F Jan (6°C) 78°F Jul (26°C)
Annual Average60.7°F
12% above US avg
January Average42°F (6°C)
July Average78°F (26°C)
Sunny Days203 days/yr

Geography

Elevation23 ft (7 m)
Area188.3 sq mi (487.6 km²)
Population Density625/sq mi
Coordinates33.4425°N, 129.9697°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 73.4"
93% above US avg
Snowfall 0.0"
Wettest Month (Jun) 12.09"
Driest Month (Dec) 2.76"

Air Quality

Earthquake History

192 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.0. Most recent: M4.9 on Aug 6, 2025.

Apr 15, 2016 6 km ESE of Kumamoto, Japan M7.0 103 km
Mar 20, 2005 28 km NNW of Maebaru-ch??, Japan M6.6 43 km
Jun 11, 2006 15 km S of Tsukawaki, Japan M6.3 115 km
Apr 14, 2016 2 km SSE of Kumamoto, Japan M6.2 100 km
Apr 14, 2016 5 km ENE of Uto, Japan M6.0 108 km
Apr 15, 2016 6 km S of Kikuchi, Japan M5.7 97 km
Apr 19, 2005 8 km NNW of Maebaru-ch??, Japan M5.5 29 km
Apr 15, 2016 10 km NE of Aso, Japan M5.5 121 km
May 22, 1998 9 km NE of Bungo-Takada-shi, Japan M5.5 145 km
Apr 18, 2016 8 km NNE of Aso, Japan M5.5 115 km
Apr 15, 2016 5 km WSW of Aso, Japan M5.4 114 km
Apr 14, 2016 14 km ESE of Kumamoto, Japan M5.4 111 km
Apr 14, 2016 4 km NNE of Uto, Japan M5.3 105 km
Apr 15, 2016 5 km ENE of Uto, Japan M5.3 107 km
Apr 19, 2016 6 km NNE of Honmachi, Japan M5.3 115 km
Apr 15, 2016 13 km ESE of Kumamoto, Japan M5.3 109 km
Oct 28, 1991 13 km SSW of Ube, Japan M5.2 124 km
Apr 15, 2016 13 km E of Uto, Japan M5.2 114 km
Apr 16, 2016 8 km ENE of Kumamoto, Japan M5.2 101 km
Apr 16, 2016 4 km N of Uto, Japan M5.1 103 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

56 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: Shanshan (2024).

Year Name Category Closest
2024 Shanshan Category 2 109 km
2022 Nanmadol Category 2 48 km
2022 Hinnamnor Category 2 192 km
2020 Haishen Category 2 95 km
2020 Maysak Category 2 176 km
2019 Francisco Category 1 84 km
2018 Trami Category 1 291 km
2018 Prapiroon Category 1 82 km
2017 Noru Category 1 285 km
2016 Malakas Category 3 250 km
2016 Chaba Category 1 203 km
2016 Namtheun Category 1 294 km
2015 Goni Category 3 71 km
2013 Danas Category 2 139 km
2012 Sanba Category 3 188 km
2007 Usagi Category 3 124 km
2007 Man-yi Category 2 226 km
2007 Nari Category 1 265 km
2006 Shanshan Category 2 55 km
2005 Nabi Category 3 44 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 55.0 m (180 ft).

Year Location Cause Max Wave Deaths Distance
1792 SHIMABARA BAY, KYUSHU ISLAND Landslide 55.0 m 15,000 83 km
1828 AMAKUSA SEA Earthquake 94 km
1619 YATSUSHIRO, JAPAN Earthquake 120 km
744 SW. KYUSHU ISLAND Earthquake 1,520 126 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

8 volcanoes within 200 km. Closest: Unzendake (82 km).

Name Type Elevation Last Eruption Distance
Unzendake Complex 1,483 m (4,865 ft) 1996 82 km
Asosan Caldera 1,592 m (5,223 ft) 2020 123 km
Kujusan Stratovolcano(es) 1,791 m (5,876 ft) 1996 125 km
Yufu-Tsurumi Lava dome(s) 1,584 m (5,197 ft) 867 133 km
Fukue Shield(s) 315 m (1,033 ft) -400 136 km
Kirishimayama Shield 1,700 m (5,577 ft) 2018 187 km
Abu Shield(s) 641 m (2,103 ft) -6850 191 km
Yonemaru-Sumiyoshiike Maar(s) 40 m (131 ft) -6200 195 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 42°F (6°C) 2.8 in Coldest
February 43°F (6°C) 3.2 in
March 49°F (9°C) 4.5 in
April 58°F (14°C) 6.3 in
May 65°F (18°C) 6.2 in
June 71°F (22°C) 12.1 in Wettest
July 78°F (26°C) 11.6 in
August 81°F (27°C) 7.3 in Warmest
September 74°F (23°C) 9.2 in
October 65°F (18°C) 4.0 in
November 56°F (13°C) 3.4 in
December 46°F (8°C) 2.8 in Driest

Karatsu has a seasonal temperature swing of 39°F / from 42°F in January to 81°F in August. Total annual precipitation is 73.4 inches, with June being the wettest month (12.1") and December the driest (2.8").

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