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Hamamatsu, Japan

Full City Profile

4.2 /5.0
A Great
791,707 Population 604/sq mi density
10 ft Elevation 3 meters
61°F Avg Temperature 16°C
A
Overall
4.2 / 5.0
Strong
B
Economy
3.3 / 5.0
$33,100 median income, 2.2% unemployment
A+
Affordability
5.0 / 5.0
$84,000 home value, $420/mo rent
Hamamatsu 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 192 sunny days per year. Annual precipitation totals 79.6 inches. The area receives 0.0 inches of snow annually.

Temperature

42°F Jan (6°C) 78°F Jul (26°C)
Annual Average60.9°F
13% above US avg
January Average42°F (6°C)
July Average78°F (26°C)
Sunny Days192 days/yr

Geography

Elevation10 ft (3 m)
Area1,310.2 sq mi (3,393.5 km²)
Population Density604/sq mi
Coordinates34.7000°N, 137.7333°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 79.6"
109% above US avg
Snowfall 0.0"
Wettest Month (Jun) 10.91"
Driest Month (Jan) 2.64"

Air Quality

Earthquake History

939 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.4. Most recent: M4.8 on Aug 17, 2025.

Feb 20, 1990 28 km E of Shimoda, Japan M6.4 139 km
Aug 10, 2009 8 km NE of Sagara, Japan M6.2 49 km
Jul 1, 2000 53 km SSE of Shimoda, Japan M6.1 139 km
Jul 15, 2000 near the south coast of Honshu, Japan M6.1 146 km
Jul 7, 1995 62 km SSE of Toba, Japan M6.0 98 km
Mar 15, 2011 6 km NNW of Fujinomiya, Japan M6.0 100 km
Jan 15, 2007 15 km WSW of Heda, Japan M5.9 86 km
Aug 1, 2011 20 km E of ?yama, Japan M5.9 64 km
Jul 8, 2000 71 km SSE of Shimoda, Japan M5.9 147 km
Oct 6, 1995 68 km S of Shimoda, Japan M5.9 142 km
May 23, 1997 38 km SSE of Tahara, Japan M5.8 43 km
Aug 18, 2000 64 km SSE of Shimoda, Japan M5.7 147 km
Feb 28, 1998 127 km S of ?yama, Japan M5.7 143 km
Apr 20, 2006 16 km SE of It?, Japan M5.6 136 km
Jul 23, 2000 63 km SSE of Shimoda, Japan M5.6 142 km
Nov 18, 2013 25 km SE of Toba, Japan M5.6 75 km
Oct 18, 1996 102 km SSE of Toba, Japan M5.6 117 km
Mar 4, 1997 9 km SSW of It?, Japan M5.6 121 km
Mar 6, 1996 13 km NNE of Gotenba, Japan M5.6 140 km
May 3, 1998 14 km SW of It?, Japan M5.6 116 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

53 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Halong (2025).

Year Name Category Closest
2025 Halong Category 4 289 km
2025 Nakri Category 1 270 km
2024 Ampil Category 3 299 km
2023 Lan Category 2 218 km
2019 Faxai Category 4 134 km
2019 Hagibis Category 2 89 km
2018 Jebi Category 2 214 km
2018 Trami Category 1 228 km
2018 Cimaron Category 1 278 km
2018 Jongdari Category 1 62 km
2017 Lan Category 2 153 km
2017 Noru Category 1 254 km
2016 Mindulle Category 1 168 km
2014 Phanfone Category 1 12 km
2013 Wipha Category 1 233 km
2011 Roke Category 3 23 km
2010 Chaba Category 1 227 km
2009 Melor Category 1 130 km
2009 Krovanh Category 1 240 km
2008 Sinlaku Category 1 154 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

20 tsunamis recorded within 500 km. Highest wave on record: 21.0 m (69 ft).

Year Location Cause Max Wave Deaths Distance
1854 ENSHUNADA SEA Earthquake 21.0 m 1,000 79 km
1707 ENSHUNADA Earthquake 11.0 m 2,000 67 km
1944 OFF SOUTHEAST COAST KII PENINSULA Earthquake 10.0 m 1,223 97 km
1498 ENSHUNADA SEA Earthquake 10.0 m 5,000 85 km
1096 ENSHUNADA Earthquake 7.0 m 81 km
1855 ENSHUNADA Earthquake 3.0 m 25 km
1408 KUMANONADA Earthquake 2.0 m 126 km
922 KUMANONADA Earthquake 2.0 m 138 km
1945 TOKAIDO Earthquake 1.0 m 2,306 49 km
2009 HONSHU: S COAST Earthquake 0.6 m 1 49 km
1980 HONSHU ISLAND Earthquake 0.6 m 133 km
1978 TOKAIDO Earthquake 0.4 m 25 140 km
1974 TOKAIDO Earthquake 0.2 m 30 89 km
1990 JAPAN Earthquake 0.2 m 139 km
2000 HONSHU: S COAST Earthquake 0.1 m 146 km
2000 KOZU-SHIMA ISLAND, HONSHU Earthquake 0.1 m 1 139 km
1857 TOKAIDO Earthquake 53 km
1708 TOKAIDO Earthquake 103 km
1666 AICHI PREFECTURE Earthquake 92 km
1633 SAGAMI BAY Earthquake 150 145 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Fujisan (117 km).

Name Type Elevation Last Eruption Distance
Fujisan Stratovolcano 3,776 m (12,388 ft) 1708 117 km
Izu-Tobu Pyroclastic cone(s) 1,406 m (4,613 ft) 1989 127 km
Hakoneyama Complex 1,438 m (4,718 ft) 2015 132 km
Ontakesan Complex 3,067 m (10,062 ft) 2014 135 km
Kozushima Lava dome(s) 572 m (1,877 ft) 838 141 km
Toshima Stratovolcano 508 m (1,667 ft) -4550 143 km
Niijima Lava dome(s) 432 m (1,417 ft) 886 145 km
Izu-Oshima Stratovolcano 758 m (2,487 ft) 1990 152 km
Norikuradake Stratovolcano(es) 3,026 m (9,928 ft) -50 157 km
Yokodake Stratovolcano(es) 2,480 m (8,136 ft) 1200 163 km
Yakedake Stratovolcano(es) 2,455 m (8,054 ft) 1995 170 km
Miyakejima Stratovolcano 775 m (2,543 ft) 2010 178 km
Hakusan Stratovolcano 2,702 m (8,865 ft) 1659 184 km
Washiba-Kumonotaira Shield(s) 2,924 m (9,593 ft) Unknown 190 km
Mikurajima Stratovolcano 851 m (2,792 ft) -4100 195 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 42°F (6°C) 2.6 in Coldest, Driest
February 43°F (6°C) 3.4 in
March 49°F (9°C) 5.9 in
April 58°F (15°C) 7.6 in
May 65°F (19°C) 8.3 in
June 72°F (22°C) 10.9 in Wettest
July 78°F (26°C) 9.2 in
August 80°F (27°C) 8.6 in Warmest
September 75°F (24°C) 8.5 in
October 65°F (19°C) 7.3 in
November 56°F (13°C) 4.5 in
December 46°F (8°C) 2.7 in

Hamamatsu has a seasonal temperature swing of 38°F / from 42°F in January to 80°F in August. Total annual precipitation is 79.6 inches, with June being the wettest month (10.9") and January the driest (2.6").

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