All Countries
Weather & Climate in Kōzushima, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kōzushima enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 50°F in January while summers reach 75°F in July. The area gets 161 sunny days per year, below the national average of 205. Annual precipitation totals 96.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 203 feet.
Temperature
50°F Jan (10°C)
75°F Jul (24°C)
| Annual Average | 62.6°F |
| 16% above US avg | |
| January Average | 50°F (10°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 161 days/yr |
Geography
| Elevation | 203 ft (62 m) |
| Area | 7.2 sq mi (18.6 km²) |
| Population Density | 259/sq mi |
| Coordinates | 34.2000°N, 139.1333°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
1,582 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.5.
| Sep 23, 1990 | 153 km SSE of ?yama, Japan | M6.5 | 113 km | 10 km |
| Jul 30, 2000 | 94 km SSE of Shimoda, Japan | M6.5 | 40 km | 10 km |
| Feb 20, 1990 | 28 km E of Shimoda, Japan | M6.4 | 57 km | 14 km |
| Sep 3, 1991 | 115 km S of Shimoda, Japan | M6.4 | 70 km | 27 km |
| Sep 23, 1990 | 162 km SSE of ?yama, Japan | M6.2 | 120 km | 10 km |
| Aug 10, 2009 | 8 km NE of Sagara, Japan | M6.2 | 100 km | 40 km |
| Jul 1, 2000 | 53 km SSE of Shimoda, Japan | M6.1 | 2 km | 10 km |
| Jul 15, 2000 | near the south coast of Honshu, Japan | M6.1 | 18 km | 10 km |
| May 4, 2014 | 31 km ESE of It?, Japan | M6.0 | 83 km | 153 km |
| Mar 15, 2011 | 6 km NNW of Fujinomiya, Japan | M6.0 | 129 km | 9 km |
| Oct 6, 1995 | 68 km S of Shimoda, Japan | M5.9 | 15 km | 33 km |
| Jul 8, 2000 | 71 km SSE of Shimoda, Japan | M5.9 | 16 km | 10 km |
| Jan 15, 2007 | 15 km WSW of Heda, Japan | M5.9 | 89 km | 170 km |
| Aug 1, 2011 | 20 km E of ?yama, Japan | M5.9 | 80 km | 13 km |
| Feb 1, 1992 | 4 km SSE of Miura, Japan | M5.8 | 111 km | 100 km |
| May 14, 2023 | 156 km SSE of Shimoda, Japan | M5.8 | 101 km | 13 km |
| Jul 30, 2000 | 90 km SSE of Shimoda, Japan | M5.7 | 36 km | 10 km |
| Aug 18, 2000 | 64 km SSE of Shimoda, Japan | M5.7 | 9 km | 10 km |
| Feb 28, 1998 | 127 km S of ?yama, Japan | M5.7 | 125 km | 291 km |
| Jul 2, 2000 | 71 km SSE of Shimoda, Japan | M5.7 | 16 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
56 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Halong | Category 4 | — | 180 km |
| 2025 | Nakri | Category 1 | — | 163 km |
| 2024 | Ampil | Category 3 | 98 mph | 160 km |
| 2024 | Jebi | Category 1 | 75 mph | 252 km |
| 2023 | Lan | Category 2 | 81 mph | 288 km |
| 2021 | Mindulle | Category 1 | 92 mph | 277 km |
| 2019 | Faxai | Category 4 | 98 mph | 17 km |
| 2019 | Hagibis | Category 2 | 92 mph | 60 km |
| 2018 | Jongdari | Category 2 | 86 mph | 33 km |
| 2018 | Shanshan | Category 1 | 81 mph | 191 km |
| 2017 | Lan | Category 2 | 104 mph | 200 km |
| 2016 | Mindulle | Category 1 | 75 mph | 36 km |
| 2014 | Phanfone | Category 1 | 81 mph | 103 km |
| 2013 | Wipha | Category 1 | 81 mph | 159 km |
| 2011 | Roke | Category 3 | 92 mph | 145 km |
| 2010 | Chaba | Category 1 | 75 mph | 188 km |
| 2009 | Melor | Category 1 | 86 mph | 234 km |
| 2009 | Krovanh | Category 1 | 69 mph | 105 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 220 km |
| 2007 | Fitow | Category 1 | 81 mph | 41 km |
Source: NOAA IBTrACS (Category 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 | 116 km |
| 1923 | SAGAMI BAY | Earthquake | 13.0 m | 105,385 | 106 km |
| 1703 | OFF SW BOSO PENINSULA | Earthquake | 11.7 m | 5,233 | 83 km |
| 1707 | ENSHUNADA | Earthquake | 11.0 m | 2,000 | 123 km |
| 1498 | ENSHUNADA SEA | Earthquake | 10.0 m | 5,000 | 98 km |
| 1495 | KAMAKURA, SAGAMI BAY, TOKAIDO | Earthquake | 5.0 m | 200 | 106 km |
| 1855 | ENSHUNADA | Earthquake | 3.0 m | — | 145 km |
| 1433 | OFF IZU-OSHIMA | Earthquake | 2.0 m | — | 85 km |
| 2009 | HONSHU: S COAST | Earthquake | 0.6 m | 1 | 100 km |
| 1980 | HONSHU ISLAND | Earthquake | 0.6 m | — | 68 km |
| 1978 | TOKAIDO | Earthquake | 0.4 m | 25 | 69 km |
| 1923 | RYUKYU ISLANDS | Earthquake | 0.3 m | — | 125 km |
| 1990 | W. OF BONIN ISLANDS, IZU IS., JAPAN | Earthquake | 0.2 m | — | 113 km |
| 1974 | TOKAIDO | Earthquake | 0.2 m | 30 | 60 km |
| 1982 | S. OF HONSHU ISLAND | Earthquake | 0.2 m | — | 50 km |
| 1990 | JAPAN | Earthquake | 0.2 m | — | 57 km |
| 2000 | HONSHU: S COAST | Earthquake | 0.1 m | — | 40 km |
| 2000 | HONSHU: S COAST | Earthquake | 0.1 m | — | 18 km |
| 2000 | KOZU-SHIMA ISLAND, HONSHU | Earthquake | 0.1 m | 1 | 2 km |
| 1857 | TOKAIDO | Earthquake | — | — | 101 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
10 volcanoes within 200 km. Closest: Kozushima (3 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Kozushima | Lava dome(s) | 572 m (1,877 ft) | 838 | 3 km |
| Niijima | Lava dome(s) | 432 m (1,417 ft) | 886 | 25 km |
| Miyakejima | Stratovolcano | 775 m (2,543 ft) | 2010 | 38 km |
| Toshima | Stratovolcano | 508 m (1,667 ft) | -4550 | 38 km |
| Mikurajima | Stratovolcano | 851 m (2,792 ft) | -4100 | 56 km |
| Izu-Oshima | Stratovolcano | 758 m (2,487 ft) | 1990 | 63 km |
| Izu-Tobu | Pyroclastic cone(s) | 1,406 m (4,613 ft) | 1989 | 78 km |
| Hakoneyama | Complex | 1,438 m (4,718 ft) | 2015 | 115 km |
| Hachijojima | Stratovolcano(es) | 854 m (2,802 ft) | 1606 | 132 km |
| Fujisan | Stratovolcano | 3,776 m (12,388 ft) | 1708 | 134 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 50°F (10°C) | 4.2 in | |
| February | 48°F (9°C) | 5.1 in | Coldest |
| March | 52°F (11°C) | 7.9 in | |
| April | 59°F (15°C) | 8.2 in | |
| May | 65°F (18°C) | 8.9 in | |
| June | 70°F (21°C) | 12.1 in | Wettest |
| July | 75°F (24°C) | 8.0 in | |
| August | 78°F (26°C) | 9.0 in | Warmest |
| September | 74°F (24°C) | 11.1 in | |
| October | 67°F (20°C) | 10.7 in | |
| November | 61°F (16°C) | 7.3 in | |
| December | 54°F (12°C) | 4.2 in | Driest |
Kōzushima has a seasonal temperature swing of 30°F / from 48°F in February to 78°F in August. Total annual precipitation is 96.4 inches, with June being the wettest month (12.1") and December the driest (4.2").