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Itoman, Japan

Full City Profile

4.0 /5.0
A Great
61,007 Population 3,389/sq mi density
16 ft Elevation 5 meters
73°F Avg Temperature 23°C
A
Overall
4.0 / 5.0
Strong
C+
Economy
2.9 / 5.0
$24,800 median income, 3.6% unemployment
A+
Affordability
5.0 / 5.0
$74,000 home value, $370/mo rent
Itoman has a warm climate with an average annual temperature of 73°F (23°C). Winters average 62°F in January while summers reach 84°F in July. The area gets 185 sunny days per year. Annual precipitation totals 83.1 inches. The area receives 0.0 inches of snow annually.

Temperature

62°F Jan (17°C) 84°F Jul (29°C)
Annual Average73.1°F
35% above US avg
January Average62°F (17°C)
July Average84°F (29°C)
Sunny Days185 days/yr

Geography

Elevation16 ft (5 m)
Area18.0 sq mi (46.6 km²)
Population Density3,389/sq mi
Coordinates26.1265°N, 127.6692°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 83.1"
119% above US avg
Snowfall 0.0"
Wettest Month (Aug) 9.69"
Driest Month (Dec) 4.25"

Air Quality

Earthquake History

936 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.0. Most recent: M4.8 on Aug 28, 2025.

Feb 26, 2010 70 km SE of Katsuren-haebaru, Japan M7.0 79 km
Mar 2, 2014 109 km NW of Nago, Japan M6.5 148 km
Jul 22, 2004 91 km E of Nago, Japan M6.1 129 km
Apr 14, 1991 82 km NW of Nago, Japan M6.0 117 km
May 1, 2023 69 km ESE of Katsuren-haebaru, Japan M5.9 81 km
May 17, 1990 13 km W of Nago, Japan M5.8 58 km
Mar 17, 2022 146 km WNW of Naha, Japan M5.7 150 km
Jul 6, 2009 143 km SSE of Itoman, Japan M5.7 144 km
Feb 8, 2022 Ryukyu Islands, Japan M5.6 139 km
Jun 3, 2022 140 km WNW of Naha, Japan M5.6 144 km
Feb 21, 2022 143 km WNW of Naha, Japan M5.6 147 km
Apr 13, 2022 145 km WNW of Naha, Japan M5.6 149 km
Jun 13, 2013 90 km E of Nago, Japan M5.6 129 km
May 7, 2022 137 km WNW of Naha, Japan M5.5 141 km
May 5, 2011 57 km ESE of Katsuren-haebaru, Japan M5.5 73 km
Jun 19, 2022 126 km WNW of Naha, Japan M5.5 130 km
Apr 9, 1997 69 km ESE of Katsuren-haebaru, Japan M5.5 85 km
Jul 24, 2004 77 km E of Nago, Japan M5.5 115 km
Jun 15, 1993 130 km S of Itoman, Japan M5.5 131 km
May 1, 1993 46 km WNW of Naha, Japan M5.5 51 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

99 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5. Most recent: Khanun (2023).

Year Name Category Closest
2023 Khanun Category 4 74 km
2022 Hinnamnor Category 4 136 km
2021 In-fa Category 2 214 km
2020 Maysak Category 4 112 km
2020 Bavi Category 2 196 km
2019 Lingling Category 4 247 km
2019 Neoguri Category 2 222 km
2019 Tapah Category 1 250 km
2018 Maria Category 3 236 km
2018 Trami Category 2 41 km
2018 Prapiroon Category 1 87 km
2018 Kong-rey Category 1 134 km
2017 Talim Category 4 232 km
2017 Saola Category 1 130 km
2016 Chaba Category 5 104 km
2016 Namtheun Category 2 251 km
2015 Goni Category 4 137 km
2015 Chan-hom Category 4 157 km
2015 Halola Category 1 233 km
2015 Noul Category 1 215 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

2 tsunamis recorded within 500 km. Highest wave on record: 1.2 m (4 ft).

Year Location Cause Max Wave Deaths Distance
1768 RYUKYU ISLANDS Earthquake 1.2 m — 19 km
2010 RYUKYU ISLANDS Earthquake 0.1 m — 79 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 62°F (17°C) 4.9 in
February 62°F (17°C) 5.0 in Coldest
March 66°F (19°C) 6.8 in
April 70°F (21°C) 7.3 in
May 75°F (24°C) 9.5 in
June 80°F (27°C) 9.0 in
July 84°F (29°C) 6.8 in Warmest
August 83°F (28°C) 9.7 in Wettest
September 81°F (27°C) 7.9 in
October 77°F (25°C) 6.8 in
November 72°F (22°C) 5.2 in
December 66°F (19°C) 4.3 in Driest

Itoman has a seasonal temperature swing of 21°F / from 62°F in February to 84°F in July. Total annual precipitation is 83.1 inches, with August being the wettest month (9.7") and December the driest (4.3").

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