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Tsukubamirai, Japan

Full City Profile

4.1 /5.0
A Great
49,872 Population 1,632/sq mi density
33 ft Elevation 10 meters
62°F Avg Temperature 16°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.2 / 5.0
$32,500 median income, 2.5% unemployment
A+
Affordability
5.0 / 5.0
$84,000 home value, $420/mo rent
Tsukubamirai enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 39°F in January while summers reach 82°F in July. The area gets 294 sunny days per year. Annual precipitation totals 51.7 inches. The area receives 1.3 inches of snow annually.

Temperature

39°F Jan (4°C) 82°F Jul (28°C)
Annual Average61.5°F
14% above US avg
January Average39°F (4°C)
July Average82°F (28°C)
Sunny Days294 days/yr

Geography

Elevation33 ft (10 m)
Area30.6 sq mi (79.2 km²)
Population Density1,632/sq mi
Coordinates35.9841°N, 140.0093°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 51.7"
36% above US avg
Snowfall 1.3"
Wettest Month (Sep) 7.32"
Driest Month (Jan) 1.54"

Air Quality

Earthquake History

3,101 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.9. Most recent: M4.2 on Aug 29, 2025.

Mar 11, 2011 47 km E of ?arai, Japan M7.9 104 km
May 7, 2008 78 km NE of Hasaki, Japan M6.9 138 km
Apr 11, 2011 17 km SSW of Ishikawa, Japan M6.6 118 km
Mar 11, 2011 81 km NE of Hasaki, Japan M6.5 141 km
Jun 1, 1990 near the east coast of Honshu, Japan M6.3 59 km
Jul 30, 2011 13 km SSE of Iwaki, Japan M6.3 136 km
Apr 21, 2011 6 km WNW of T?gane, Japan M6.2 52 km
Apr 11, 2011 23 km SE of T?gane, Japan M6.2 81 km
Jun 3, 2000 6 km SE of Narut?, Japan M6.2 63 km
Sep 11, 1996 23 km SSE of Hasaki, Japan M6.2 98 km
May 7, 2008 80 km NE of Hasaki, Japan M6.2 140 km
Mar 11, 2011 70 km ESE of Kitaibaraki, Japan M6.2 148 km
Aug 5, 1990 43 km E of ?arai, Japan M6.1 102 km
Mar 13, 2011 72 km E of Hasaki, Japan M6.1 150 km
May 26, 2023 12 km SE of Narutō, Japan M6.1 69 km
Sep 15, 2011 68 km E of ?arai, Japan M6.1 123 km
Mar 14, 2012 5 km SE of Asahi, Japan M6.0 70 km
Mar 11, 2011 4 km ESE of Hasaki, Japan M6.0 84 km
Aug 6, 1991 19 km E of Hasaki, Japan M6.0 98 km
May 4, 2014 31 km ESE of It?, Japan M6.0 131 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year Name Category Closest
2024 Ampil Category 3 211 km
2024 Jebi Category 1 233 km
2019 Faxai Category 3 33 km
2019 Hagibis Category 2 70 km
2018 Shanshan Category 1 165 km
2018 Jongdari Category 1 228 km
2016 Mindulle Category 1 193 km
2016 Lionrock Category 1 233 km
2014 Phanfone Category 1 189 km
2011 Roke Category 2 74 km
2009 Krovanh Category 1 276 km
2007 Fitow Category 1 85 km
2005 Saola Category 2 274 km
2005 Mawar Category 2 41 km
2004 Ma-on Category 3 47 km
2003 Choi-wan Category 3 293 km
2002 Higos Category 2 14 km
2001 Vipa Category 1 270 km
2001 Danas Category 1 23 km
2000 Sonamu Category 1 278 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

19 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 105,385 109 km
1703 OFF SW BOSO PENINSULA Earthquake 11.7 m 5,233 144 km
1495 KAMAKURA, SAGAMI BAY, TOKAIDO Earthquake 5.0 m 200 109 km
1732 KUJUKURI BEACH, JAPAN Earthquake 2.0 m 113 km
1670 BOSO, JAPAN Earthquake 2.0 m 104 km
1433 OFF IZU-OSHIMA Earthquake 2.0 m 129 km
1938 JAPAN TRENCH Earthquake 0.8 m 148 km
1978 TOKAIDO Earthquake 0.4 m 25 147 km
1923 RYUKYU ISLANDS Earthquake 0.3 m 122 km
1896 KASHIMA, JAPAN Earthquake 0.3 m 106 km
1935 JAPAN Earthquake 0.2 m 142 km
1855 TOKAIDO Earthquake 6,757 42 km
1782 ODAWARA, SAGAMI BAY Eruption + Earthquake 102 km
1642 BOSO, JAPAN Earthquake 102 km
1633 SAGAMI BAY Earthquake 150 114 km
1602 BOSO, JAPAN Eruption + Earthquake 108 km
1257 SAGAMI BAY, JAPAN Earthquake 99 km
1241 KAMAKURA, SAGAMI BAY Earthquake 103 km
818 TOKAIDO Eruption + Earthquake 108 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Akagisan (97 km).

Name Type Elevation Last Eruption Distance
Akagisan Stratovolcano 1,828 m (5,997 ft) Unknown 97 km
Nantaisan Stratovolcano 2,486 m (8,156 ft) -9540 99 km
Omanago Group Lava dome(s) 2,341 m (7,680 ft) -3050 101 km
Takaharayama Stratovolcano 1,795 m (5,889 ft) -4570 104 km
Nikko-Shiranesan Shield 2,578 m (8,458 ft) 1952 107 km
Harunasan Stratovolcano 1,449 m (4,754 ft) 550 118 km
Hakoneyama Complex 1,438 m (4,718 ft) 2015 122 km
Hiuchigatake Stratovolcano 2,356 m (7,730 ft) 1544 126 km
Nasudake Stratovolcano(es) 1,915 m (6,283 ft) 1963 127 km
Fujisan Stratovolcano 3,776 m (12,388 ft) 1708 135 km
Asamayama Complex 2,568 m (8,425 ft) 2019 141 km
Izu-Tobu Pyroclastic cone(s) 1,406 m (4,613 ft) 1989 146 km
Kusatsu-Shiranesan Stratovolcano(es) 2,165 m (7,103 ft) 2018 150 km
Izu-Oshima Stratovolcano 758 m (2,487 ft) 1990 151 km
Yokodake Stratovolcano(es) 2,480 m (8,136 ft) 1200 152 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 39°F (4°C) 1.5 in Coldest, Driest
February 40°F (5°C) 2.3 in
March 46°F (8°C) 3.6 in
April 56°F (13°C) 4.5 in
May 64°F (18°C) 4.6 in
June 69°F (21°C) 6.1 in
July 82°F (28°C) 5.2 in Warmest
August 79°F (26°C) 5.2 in
September 72°F (22°C) 7.3 in Wettest
October 62°F (17°C) 6.7 in
November 52°F (11°C) 3.3 in
December 43°F (6°C) 1.7 in

Tsukubamirai has a seasonal temperature swing of 43°F / from 39°F in January to 82°F in July. Total annual precipitation is 52.0 inches, with September being the wettest month (7.3") and January the driest (1.5").

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