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Weather & Climate in Ōta, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ōta enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 38°F in January while summers reach 77°F in July. The area gets 247 sunny days per year, above the national average. Annual precipitation totals 48.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 164 feet.
Temperature
38°F Jan (4°C)
77°F Jul (25°C)
| Annual Average | 58.1°F |
| 8% above US avg | |
| January Average | 38°F (4°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 247 days/yr |
Geography
| Elevation | 164 ft (50 m) |
| Area | 67.8 sq mi (175.6 km²) |
| Population Density | 3,310/sq mi |
| Coordinates | 36.3000°N, 139.3667°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
1,964 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Apr 11, 2011 | 17 km SSW of Ishikawa, Japan | M6.6 | 121 km | 11 km |
| Jun 1, 1990 | near the east coast of Honshu, Japan | M6.3 | 123 km | 67 km |
| Jun 3, 2000 | 6 km SE of Narut?, Japan | M6.2 | 129 km | 62 km |
| Apr 11, 2011 | 23 km SE of T?gane, Japan | M6.2 | 147 km | 15 km |
| Apr 21, 2011 | 6 km WNW of T?gane, Japan | M6.2 | 117 km | 43 km |
| Mar 11, 2011 | 13 km E of Arai, Japan | M6.2 | 119 km | 9 km |
| May 26, 2023 | 12 km SE of Narutō, Japan | M6.1 | 135 km | 42 km |
| Mar 14, 2012 | 5 km SE of Asahi, Japan | M6.0 | 138 km | 10 km |
| Apr 3, 2004 | 37 km ESE of Hitachi, Japan | M6.0 | 148 km | 31 km |
| Mar 15, 2011 | 6 km NNW of Fujinomiya, Japan | M6.0 | 134 km | 9 km |
| Jul 20, 2000 | 31 km ESE of Hitachi, Japan | M6.0 | 147 km | 47 km |
| Jul 23, 2005 | 9 km WSW of Ichihara, Japan | M5.9 | 105 km | 61 km |
| Apr 12, 2011 | 8 km WSW of Ishikawa, Japan | M5.9 | 127 km | 11 km |
| Apr 10, 2005 | near the east coast of Honshu, Japan | M5.9 | 121 km | 43 km |
| Apr 29, 2012 | 5 km NNW of T?gane, Japan | M5.8 | 118 km | 44 km |
| Feb 25, 2013 | 29 km NE of Numata, Japan | M5.8 | 62 km | 10 km |
| May 20, 2011 | 3 km NNE of Hasaki, Japan | M5.8 | 146 km | 29 km |
| Feb 1, 1992 | 4 km SSE of Miura, Japan | M5.8 | 135 km | 100 km |
| Apr 16, 2011 | 6 km ENE of Tanuma, Japan | M5.8 | 27 km | 77 km |
| Jun 19, 2005 | 5 km ENE of Narut?, Japan | M5.7 | 126 km | 48 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
31 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Ampil | Category 3 | 98 mph | 278 km |
| 2024 | Jebi | Category 1 | 75 mph | 294 km |
| 2019 | Faxai | Category 3 | 98 mph | 101 km |
| 2019 | Hagibis | Category 2 | 92 mph | 78 km |
| 2018 | Jebi | Category 1 | 81 mph | 270 km |
| 2018 | Shanshan | Category 1 | 75 mph | 229 km |
| 2018 | Jongdari | Category 1 | 81 mph | 253 km |
| 2016 | Lionrock | Category 1 | 75 mph | 294 km |
| 2016 | Mindulle | Category 1 | 75 mph | 223 km |
| 2014 | Phanfone | Category 1 | 81 mph | 179 km |
| 2011 | Roke | Category 2 | 92 mph | 47 km |
| 2007 | Fitow | Category 1 | 81 mph | 79 km |
| 2005 | Mawar | Category 2 | 81 mph | 107 km |
| 2004 | Ma-on | Category 3 | 92 mph | 87 km |
| 2003 | Etau | Category 1 | 52 mph | 296 km |
| 2002 | Higos | Category 2 | 86 mph | 65 km |
| 2001 | Danas | Category 1 | 81 mph | 73 km |
| 2000 | Kirogi | Category 1 | 86 mph | 164 km |
| 1998 | Vicki | Category 2 | 69 mph | 173 km |
| 1998 | Stella | Category 1 | 69 mph | 32 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
9 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 | 134 km |
| 1495 | KAMAKURA, SAGAMI BAY, TOKAIDO | Earthquake | 5.0 m | 200 | 134 km |
| 1896 | KASHIMA, JAPAN | Earthquake | 0.3 m | - | 148 km |
| 1855 | TOKAIDO | Earthquake | - | 6,757 | 82 km |
| 1782 | ODAWARA, SAGAMI BAY | Eruption + Earthquake | - | - | 137 km |
| 1633 | SAGAMI BAY | Earthquake | - | 150 | 123 km |
| 1257 | SAGAMI BAY, JAPAN | Earthquake | - | - | 123 km |
| 1241 | KAMAKURA, SAGAMI BAY | Earthquake | - | - | 122 km |
| 818 | TOKAIDO | Eruption + Earthquake | - | - | 123 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Akagisan (33 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 33 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 50 km |
| Nantaisan | Stratovolcano | 2,486 m (8,156 ft) | -9540 | 53 km |
| Nikko-Shiranesan | Shield | 2,578 m (8,458 ft) | 1952 | 56 km |
| Omanago Group | Lava dome(s) | 2,341 m (7,680 ft) | -3050 | 57 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 73 km |
| Takaharayama | Stratovolcano | 1,795 m (5,889 ft) | -4570 | 76 km |
| Asamayama | Complex | 2,568 m (8,425 ft) | 2019 | 77 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 83 km |
| Shiga | Shield(s) | 2,041 m (6,696 ft) | Unknown | 87 km |
| Yokodake | Stratovolcano(es) | 2,480 m (8,136 ft) | 1200 | 97 km |
| Nasudake | Stratovolcano(es) | 1,915 m (6,283 ft) | 1963 | 106 km |
| Fujisan | Stratovolcano | 3,776 m (12,388 ft) | 1708 | 119 km |
| Hakoneyama | Complex | 1,438 m (4,718 ft) | 2015 | 123 km |
| Numazawa | Shield | 835 m (2,740 ft) | -3400 | 128 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (4°C) | 1.5 in | Coldest, Driest |
| February | 40°F (4°C) | 2.0 in | |
| March | 45°F (7°C) | 2.7 in | |
| April | 56°F (13°C) | 3.6 in | |
| May | 64°F (18°C) | 4.3 in | |
| June | 70°F (21°C) | 6.5 in | |
| July | 77°F (25°C) | 5.6 in | |
| August | 79°F (26°C) | 6.2 in | Warmest |
| September | 72°F (22°C) | 7.3 in | Wettest |
| October | 62°F (16°C) | 5.2 in | |
| November | 52°F (11°C) | 2.6 in | |
| December | 43°F (6°C) | 1.5 in |
Ōta has a seasonal temperature swing of 41°F / from 38°F in January to 79°F in August. Total annual precipitation is 49.0 inches, with September being the wettest month (7.3") and January the driest (1.5").