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Kōya, Japan

Full City Profile

4.1 /5.0
A Great
3,279 Population 62/sq mi density
2,602 ft Elevation 793 meters
56°F Avg Temperature 13°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.2 / 5.0
$28,900 median income, 2.5% unemployment
A+
Affordability
5.0 / 5.0
$70,000 home value, $350/mo rent
Kōya enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 36°F in January while summers reach 75°F in July. The area gets 208 sunny days per year. Annual precipitation totals 70.4 inches. The area receives 0.0 inches of snow annually.

Temperature

36°F Jan (2°C) 75°F Jul (24°C)
Annual Average55.5°F
3% above US avg
January Average36°F (2°C)
July Average75°F (24°C)
Sunny Days208 days/yr

Geography

Elevation2,602 ft (793 m)
Area52.9 sq mi (137.0 km²)
Population Density62/sq mi
Coordinates34.2129°N, 135.6224°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 70.4"
85% above US avg
Snowfall 0.0"
Wettest Month (Jun) 10.63"
Driest Month (Dec) 1.93"

Air Quality

Earthquake History

472 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.9. Most recent: M4.8 on Jul 31, 2025.

Jan 16, 1995 8 km S of Akashi, Japan M6.9 69 km
Apr 11, 1990 11 km ENE of Maizuru, Japan M6.1 141 km
Jul 7, 1995 62 km SSE of Toba, Japan M6.0 141 km
Apr 1, 2016 54 km SE of Shing?, Japan M5.9 117 km
Jun 1, 1998 17 km SW of Owase, Japan M5.8 52 km
Feb 26, 2025 38 km ESE of Shingū, Japan M5.8 96 km
Apr 12, 2013 6 km WNW of Sumoto, Japan M5.8 75 km
Aug 20, 1999 22 km SE of Kainan, Japan M5.7 29 km
Nov 18, 2013 25 km SE of Toba, Japan M5.6 132 km
Jun 17, 2018 near the south coast of western Honshu, Japan M5.5 68 km
Aug 1, 2007 42 km ESE of Owase, Japan M5.5 98 km
Oct 30, 2000 western Honshu, Japan M5.5 55 km
Jan 18, 2003 67 km SSE of Toba, Japan M5.5 147 km
Sep 24, 2003 5 km WNW of Ayabe, Japan M5.4 129 km
May 9, 2022 7 km NE of Toba, Japan M5.3 122 km
Jan 6, 2004 36 km S of Ise, Japan M5.3 97 km
Apr 22, 1998 18 km SE of Hikone, Japan M5.2 128 km
Mar 13, 2019 22 km ESE of Anan, Japan M5.2 84 km
Jun 10, 2009 7 km WSW of Ise, Japan M5.1 96 km
Apr 15, 2007 11 km ENE of Ueno-ebisumachi, Japan M5.1 87 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year Name Category Closest
2025 Nakri Category 1 291 km
2023 Lan Category 2 58 km
2019 Hagibis Category 2 245 km
2018 Jebi Category 3 67 km
2018 Trami Category 1 47 km
2018 Cimaron Category 1 95 km
2018 Jongdari Category 1 139 km
2017 Lan Category 2 172 km
2017 Noru Category 1 54 km
2016 Malakas Category 1 252 km
2015 Nangka Category 1 182 km
2014 Phanfone Category 2 105 km
2014 Halong Category 1 254 km
2012 Jelawat Category 1 192 km
2011 Roke Category 4 114 km
2011 Ma-on Category 1 116 km
2010 Chaba Category 1 292 km
2009 Melor Category 1 93 km
2008 Sinlaku Category 1 125 km
2007 Fitow Category 1 283 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

20 tsunamis recorded within 500 km. Highest wave on record: 28.0 m (92 ft).

Year Location Cause Max Wave Deaths Distance
1854 NANKAIDO Earthquake 28.0 m 3,000 137 km
1707 NANKAIDO Earthquake 25.7 m 5,000 136 km
1944 OFF SOUTHEAST COAST KII PENINSULA Earthquake 10.0 m 1,223 138 km
1946 HONSHU: S COAST Earthquake 6.6 m 1,362 124 km
1711 SEIONAIKAI, JAPAN Earthquake 2.0 m 1,000 149 km
1520 KII, KUMANANONADA Earthquake 2.0 m 93 km
1510 OSAKA BAY Earthquake 2.0 m 48 km
1408 KUMANONADA Earthquake 2.0 m 126 km
1403 KUMANONADA Earthquake 2.0 m 99 km
922 KUMANONADA Earthquake 2.0 m 109 km
1909 ANEGAWA, JAPAN Earthquake 1.8 m 41 146 km
1808 E. AWA, TOKUSHIMA PREFECTURE Earthquake 1.5 m 83 km
1948 TOKAIDO Earthquake 0.6 m 124 km
1995 KOBE, JAPAN Earthquake 0.3 m 6,434 66 km
1791 OASAKA BAY Earthquake 38 km
1708 TOKAIDO Earthquake 129 km
1666 AICHI PREFECTURE Earthquake 139 km
1586 ISE BAY Earthquake 8,000 139 km
1498 NANKAIDO Earthquake 88 km
1361 NANKAIDO Earthquake 660 147 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 36°F (2°C) 2.3 in Coldest
February 37°F (3°C) 2.8 in
March 42°F (6°C) 4.7 in
April 53°F (12°C) 6.7 in
May 61°F (16°C) 7.1 in
June 68°F (20°C) 10.6 in Wettest
July 75°F (24°C) 8.4 in
August 76°F (25°C) 6.9 in Warmest
September 70°F (21°C) 9.5 in
October 59°F (15°C) 5.9 in
November 50°F (10°C) 3.7 in
December 41°F (5°C) 1.9 in Driest

Kōya has a seasonal temperature swing of 40°F / from 36°F in January to 76°F in August. Total annual precipitation is 70.4 inches, with June being the wettest month (10.6") and December the driest (1.9").

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