Kai, Japan

Full City Profile

75,313 Population 1,672/sq mi density
1,115 ft Elevation 340 meters
50°F Avg Temperature 10°C
Kai experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 31°F in January while summers reach 69°F in July. Annual precipitation totals 55.2 inches. The area receives 4.4 inches of snow annually.

Temperature

31°F Jan (-1°C) 69°F Jul (21°C)
Annual Average50.4°F
7% below US avg
January Average31°F (-1°C)
July Average69°F (21°C)

Geography

Elevation1,115 ft (340 m)
Area45.1 sq mi (116.7 km²)
Population Density1,672/sq mi
Coordinates35.6846°N, 138.5098°E
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 55.2"
45% above US avg
Snowfall 4.4"
Wettest Month (Sep) 8.27"
Driest Month (Dec) 1.14"

Air Quality

Earthquake History

1,045 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.4. Most recent: M4.1 on Aug 23, 2025.

Feb 20, 1990 28 km E of Shimoda, Japan M6.4 128 km
Aug 10, 2009 8 km NE of Sagara, Japan M6.2 107 km
Mar 11, 2011 13 km E of Arai, Japan M6.2 148 km
May 4, 2014 31 km ESE of It?, Japan M6.0 119 km
Mar 15, 2011 6 km NNW of Fujinomiya, Japan M6.0 46 km
Jan 15, 2007 15 km WSW of Heda, Japan M5.9 89 km
Jul 23, 2005 9 km WSW of Ichihara, Japan M5.9 135 km
Aug 1, 2011 20 km E of ?yama, Japan M5.9 117 km
Apr 16, 2011 6 km ENE of Tanuma, Japan M5.8 129 km
Feb 1, 1992 4 km SSE of Miura, Japan M5.8 121 km
Feb 25, 2013 29 km NE of Numata, Japan M5.8 145 km
Mar 11, 2011 eastern Honshu, Japan M5.7 141 km
Nov 9, 2013 3 km WSW of Moriya, Japan M5.6 134 km
Apr 20, 2006 16 km SE of It?, Japan M5.6 112 km
Mar 4, 1997 9 km SSW of It?, Japan M5.6 100 km
Mar 16, 1997 5 km NE of Toyokawa, Japan M5.6 134 km
Mar 6, 1996 13 km NNE of Gotenba, Japan M5.6 51 km
May 3, 1998 14 km SW of It?, Japan M5.6 100 km
Feb 15, 2005 2 km NNW of Iwatsuki, Japan M5.5 111 km
Apr 11, 2011 8 km WSW of Iiyama, Japan M5.5 127 km
Source: USGS (M2.5+, 1990-2025)

Hurricane History

38 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Ampil (2024).

Year Name Category Closest
2024 Ampil Category 3 295 km
2019 Faxai Category 4 116 km
2019 Hagibis Category 2 81 km
2018 Jongdari Category 2 166 km
2018 Jebi Category 1 248 km
2018 Shanshan Category 1 255 km
2017 Lan Category 1 281 km
2016 Mindulle Category 1 178 km
2014 Phanfone Category 1 88 km
2011 Roke Category 3 67 km
2009 Melor Category 1 256 km
2009 Krovanh Category 1 274 km
2008 Sinlaku Category 1 284 km
2007 Fitow Category 1 63 km
2005 Mawar Category 2 111 km
2004 Ma-on Category 4 90 km
2004 Chaba Category 1 287 km
2003 Etau Category 1 209 km
2002 Higos Category 2 113 km
2001 Danas Category 1 105 km
Source: NOAA IBTrACS (Cat 1+, 1980-2026)

Tsunami History

16 tsunamis recorded within 500 km. Highest wave on record: 13.0 m (43 ft).

Year Location Cause Max Wave Deaths Distance
1923 SAGAMI BAY Earthquake 13.0 m 105,385 111 km
1495 KAMAKURA, SAGAMI BAY, TOKAIDO Earthquake 5.0 m 200 111 km
1433 OFF IZU-OSHIMA Earthquake 2.0 m - 125 km
2009 HONSHU: S COAST Earthquake 0.6 m 1 107 km
1980 HONSHU ISLAND Earthquake 0.6 m - 115 km
1978 TOKAIDO Earthquake 0.4 m 25 119 km
1974 TOKAIDO Earthquake 0.2 m 30 122 km
1990 JAPAN Earthquake 0.2 m - 128 km
1857 TOKAIDO Earthquake - - 100 km
1855 TOKAIDO Earthquake - 6,757 117 km
1782 ODAWARA, SAGAMI BAY Eruption + Earthquake - - 126 km
1633 SAGAMI BAY Earthquake - 150 83 km
1589 SURUGA, JAPAN Earthquake - - 102 km
1257 SAGAMI BAY, JAPAN Earthquake - - 105 km
1241 KAMAKURA, SAGAMI BAY Earthquake - - 97 km
818 TOKAIDO Eruption + Earthquake - - 90 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Fujisan (41 km).

Name Type Elevation Last Eruption Distance
Fujisan Stratovolcano 3,776 m (12,388 ft) 1708 41 km
Yokodake Stratovolcano(es) 2,480 m (8,136 ft) 1200 48 km
Hakoneyama Complex 1,438 m (4,718 ft) 2015 68 km
Asamayama Complex 2,568 m (8,425 ft) 2019 80 km
Harunasan Stratovolcano 1,449 m (4,754 ft) 550 93 km
Ontakesan Complex 3,067 m (10,062 ft) 2014 96 km
Norikuradake Stratovolcano(es) 3,026 m (9,928 ft) -50 98 km
Izu-Tobu Pyroclastic cone(s) 1,406 m (4,613 ft) 1989 102 km
Yakedake Stratovolcano(es) 2,455 m (8,054 ft) 1995 103 km
Kusatsu-Shiranesan Stratovolcano(es) 2,165 m (7,103 ft) 2018 104 km
Shiga Shield(s) 2,041 m (6,696 ft) Unknown 112 km
Akagisan Stratovolcano 1,828 m (5,997 ft) Unknown 115 km
Washiba-Kumonotaira Shield(s) 2,924 m (9,593 ft) Unknown 115 km
Midagahara Stratovolcano 2,621 m (8,599 ft) 1839 129 km
Izu-Oshima Stratovolcano 758 m (2,487 ft) 1990 134 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 31°F (-1°C) 1.3 in Coldest
February 31°F (-0°C) 1.9 in
March 37°F (3°C) 3.3 in
April 48°F (9°C) 4.3 in
May 56°F (14°C) 4.8 in
June 63°F (17°C) 7.6 in
July 69°F (21°C) 6.7 in
August 71°F (22°C) 8.2 in Warmest
September 64°F (18°C) 8.3 in Wettest
October 54°F (12°C) 5.3 in
November 45°F (7°C) 2.5 in
December 36°F (2°C) 1.1 in Driest

Kai has a seasonal temperature swing of 41°F / from 31°F in January to 71°F in August. Total annual precipitation is 55.2 inches, with September being the wettest month (8.3") and December the driest (1.1").

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