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Weather & Climate in Nejime-kawaminan, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nejime-kawaminan enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 44°F in January while summers reach 79°F in July. The area gets 168 sunny days per year, below the national average of 205. Annual precipitation totals 97.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 20 feet.
Temperature
44°F Jan (6°C)
79°F Jul (26°C)
| Annual Average | 61.8°F |
| 14% above US avg | |
| January Average | 44°F (6°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 168 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 523.7 sq mi (1,356.4 km²) |
| Population Density | 12/sq mi |
| Coordinates | 31.2113°N, 130.7785°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
783 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Aug 8, 2024 | 2024 Hyuganada Sea, Japan Earthquake | M7.1 | 92 km | 24 km |
| Jan 13, 2025 | 15 km SE of Miyazaki, Japan | M6.8 | 101 km | 39 km |
| Dec 2, 1996 | 17 km SW of Miyazaki, Japan | M6.7 | 82 km | 49 km |
| Oct 19, 1996 | 5 km SE of Miyazaki, Japan | M6.7 | 99 km | 22 km |
| Oct 18, 1996 | 20 km SSE of Nishinoomote, Japan | M6.6 | 78 km | 10 km |
| Jan 24, 1999 | 15 km SSE of Nishinoomote, Japan | M6.4 | 72 km | 33 km |
| Jan 8, 2019 | 16 km SSE of Nishinoomote, Japan | M6.3 | 74 km | 35 km |
| May 9, 2019 | 43 km ESE of Miyazaki, Japan | M6.2 | 119 km | 22 km |
| Sep 3, 2009 | 32 km WSW of Makurazaki, Japan | M6.2 | 73 km | 163 km |
| Apr 2, 2025 | 56 km ENE of Nishinoomote, Japan | M6.1 | 75 km | 29 km |
| May 13, 1997 | 1 km WNW of Satsumasendai, Japan | M6.1 | 83 km | 33 km |
| Mar 26, 1997 | 16 km NE of Satsumasendai, Japan | M6.1 | 86 km | 10 km |
| Jun 25, 2000 | 33 km S of Kushima, Japan | M6.0 | 41 km | 10 km |
| Dec 16, 1998 | 22 km S of Kushima, Japan | M6.0 | 49 km | 42 km |
| Apr 30, 1994 | 8 km SSE of Kushima, Japan | M5.9 | 54 km | 26 km |
| Sep 23, 1992 | 17 km SSW of Makurazaki, Japan | M5.8 | 53 km | 161 km |
| Apr 5, 2009 | 10 km N of Miyazaki, Japan | M5.8 | 107 km | 26 km |
| Oct 19, 1996 | 19 km ENE of Miyazaki, Japan | M5.7 | 115 km | 33 km |
| Sep 9, 1996 | 8 km NE of Koseda, Japan | M5.7 | 87 km | 33 km |
| May 31, 2005 | 10 km SSW of Kushima, Japan | M5.7 | 45 km | 34 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
74 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Shanshan | Category 4 | 109 mph | 75 km |
| 2022 | Nanmadol | Category 3 | 109 mph | 20 km |
| 2020 | Haishen | Category 3 | 104 mph | 133 km |
| 2020 | Chan-hom | Category 1 | 81 mph | 270 km |
| 2019 | Francisco | Category 1 | 81 mph | 120 km |
| 2018 | Jebi | Category 3 | 104 mph | 218 km |
| 2018 | Trami | Category 2 | 98 mph | 80 km |
| 2018 | Soulik | Category 2 | 98 mph | 252 km |
| 2018 | Prapiroon | Category 1 | 75 mph | 259 km |
| 2017 | Noru | Category 1 | 86 mph | 53 km |
| 2016 | Malakas | Category 3 | 109 mph | 27 km |
| 2016 | Namtheun | Category 2 | 81 mph | 95 km |
| 2015 | Goni | Category 4 | 115 mph | 86 km |
| 2014 | Phanfone | Category 3 | 98 mph | 149 km |
| 2014 | Halong | Category 1 | 86 mph | 158 km |
| 2012 | Sanba | Category 3 | 104 mph | 283 km |
| 2012 | Jelawat | Category 2 | 98 mph | 253 km |
| 2012 | Guchol | Category 1 | 81 mph | 190 km |
| 2012 | Damrey | Category 1 | 63 mph | 192 km |
| 2011 | Roke | Category 4 | 98 mph | 248 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
18 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1780 | SW. KYUSHU ISLAND | Astronomical | 6.0 m | — | 44 km |
| 1662 | HIUGANADA | Earthquake | 5.0 m | 200 | 128 km |
| 1914 | SEIKAIDO | Eruption | 3.0 m | 63 | 42 km |
| 1929 | HYUGANADA SEA | Earthquake | 0.7 m | — | 145 km |
| 1961 | SEIKAIDO | Earthquake | 0.7 m | 2 | 106 km |
| 1996 | KYUSHU ISLAND | Earthquake | 0.6 m | — | 99 km |
| 2024 | HYUGANADA SEA | Earthquake | 0.5 m | — | 91 km |
| 1970 | SEIKAIDO | Earthquake | 0.3 m | — | 140 km |
| 1899 | SEIKAIDO | Earthquake | 0.3 m | — | 139 km |
| 2025 | HYUGANADA SEA | Earthquake | 0.2 m | — | 100 km |
| 1996 | KYUSHU ISLAND | Earthquake | 0.2 m | — | 78 km |
| 1996 | SEA OF JAPAN | Earthquake | 0.2 m | — | 82 km |
| 1987 | KYUSHU ISLAND | Earthquake | 0.0 m | 2 | 136 km |
| 1781 | SW. KYUSHU ISLAND | Astronomical | — | 38 | 42 km |
| 1780 | SW. KYUSHU ISLAND | Astronomical | — | — | 44 km |
| 1619 | YATSUSHIRO, JAPAN | Earthquake | — | — | 144 km |
| 766 | N. KAGOSHIMA BAY | Astronomical | — | — | 44 km |
| 744 | SW. KYUSHU ISLAND | Earthquake | — | 1,520 | 135 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
10 volcanoes within 200 km. Closest: Ata (20 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Ata | Caldera(s) | 924 m (3,031 ft) | 885 | 20 km |
| Aira | Caldera | 1,117 m (3,665 ft) | 2020 | 44 km |
| Yonemaru-Sumiyoshiike | Maar(s) | 40 m (131 ft) | -6200 | 65 km |
| Kikai | Caldera | 704 m (2,310 ft) | 2020 | 65 km |
| Kirishimayama | Shield | 1,700 m (5,577 ft) | 2018 | 81 km |
| Kuchinoerabujima | Stratovolcano(es) | 657 m (2,156 ft) | 2020 | 101 km |
| Kuchinoshima | Stratovolcano(es) | 628 m (2,060 ft) | 1190 | 161 km |
| Nakanoshima | Stratovolcano(es) | 979 m (3,212 ft) | 1914 | 174 km |
| Unzendake | Complex | 1,483 m (4,865 ft) | 1996 | 178 km |
| Asosan | Caldera | 1,592 m (5,223 ft) | 2020 | 189 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (6°C) | 3.6 in | Coldest, Driest |
| February | 46°F (8°C) | 5.0 in | |
| March | 51°F (11°C) | 6.9 in | |
| April | 60°F (15°C) | 8.9 in | |
| May | 66°F (19°C) | 10.9 in | |
| June | 72°F (22°C) | 17.9 in | Wettest |
| July | 79°F (26°C) | 12.9 in | |
| August | 79°F (26°C) | 9.6 in | Warmest |
| September | 75°F (24°C) | 8.9 in | |
| October | 66°F (19°C) | 5.4 in | |
| November | 57°F (14°C) | 4.5 in | |
| December | 47°F (9°C) | 3.6 in |
Nejime-kawaminan has a seasonal temperature swing of 36°F / from 44°F in January to 79°F in August. Total annual precipitation is 97.9 inches, with June being the wettest month (17.9") and January the driest (3.6").