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Weather & Climate in Kumejima, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kumejima has a warm climate with an average annual temperature of 72°F (22°C). Winters average 61°F in January while summers reach 83°F in July. The area gets 180 sunny days per year. Annual precipitation totals 86.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 3 feet.
Temperature
61°F Jan (16°C)
83°F Jul (28°C)
| Annual Average | 72.4°F |
| 34% above US avg | |
| January Average | 61°F (16°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 180 days/yr |
Geography
| Elevation | 3 ft (1 m) |
| Area | 3.0 sq mi (7.6 km²) |
| Population Density | 2,438/sq mi |
| Coordinates | 26.3405°N, 126.8050°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
675 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.5.
| Mar 2, 2014 | 109 km NW of Nago, Japan | M6.5 | 134 km | 119 km |
| Aug 7, 1993 | 199 km N of Hirara, Japan | M6.4 | 122 km | 155 km |
| Aug 7, 2007 | 136 km WNW of Nago, Japan | M6.0 | 106 km | 18 km |
| Apr 14, 1991 | 82 km NW of Nago, Japan | M6.0 | 109 km | 83 km |
| Mar 26, 2009 | 155 km NW of Nago, Japan | M5.9 | 120 km | 160 km |
| Aug 17, 2001 | 137 km NE of Hirara, Japan | M5.9 | 90 km | 33 km |
| Jul 31, 2007 | 134 km NW of Nago, Japan | M5.9 | 112 km | 10 km |
| May 17, 1990 | 13 km W of Nago, Japan | M5.8 | 108 km | 33 km |
| Jan 15, 2010 | 151 km WNW of Naha, Japan | M5.7 | 69 km | 139 km |
| Sep 18, 2022 | 166 km W of Itoman, Japan | M5.7 | 80 km | 10 km |
| Mar 17, 2022 | 146 km WNW of Naha, Japan | M5.7 | 68 km | 9 km |
| Jun 3, 2022 | 140 km WNW of Naha, Japan | M5.6 | 62 km | 10 km |
| Apr 13, 2022 | 145 km WNW of Naha, Japan | M5.6 | 69 km | 8 km |
| Feb 8, 2022 | Ryukyu Islands, Japan | M5.6 | 62 km | 10 km |
| Feb 21, 2022 | 143 km WNW of Naha, Japan | M5.6 | 69 km | 11 km |
| May 1, 1993 | 46 km WNW of Naha, Japan | M5.5 | 47 km | 55 km |
| Jun 19, 2022 | 126 km WNW of Naha, Japan | M5.5 | 49 km | 7 km |
| May 7, 2022 | 137 km WNW of Naha, Japan | M5.5 | 60 km | 10 km |
| May 6, 2022 | 135 km WNW of Naha, Japan | M5.4 | 62 km | 10 km |
| Feb 27, 2012 | 85 km SW of Itoman, Japan | M5.4 | 92 km | 42 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
102 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2023 | Khanun | Category 4 | 109 mph | 49 km |
| 2022 | Hinnamnor | Category 4 | 115 mph | 203 km |
| 2022 | Muifa | Category 2 | 92 mph | 270 km |
| 2021 | In-fa | Category 2 | 98 mph | 203 km |
| 2020 | Maysak | Category 4 | 109 mph | 41 km |
| 2020 | Bavi | Category 2 | 86 mph | 122 km |
| 2019 | Lekima | Category 4 | 121 mph | 249 km |
| 2019 | Lingling | Category 4 | 109 mph | 161 km |
| 2019 | Tapah | Category 1 | 75 mph | 168 km |
| 2018 | Maria | Category 3 | 109 mph | 222 km |
| 2018 | Trami | Category 2 | 98 mph | 53 km |
| 2018 | Prapiroon | Category 1 | 75 mph | 16 km |
| 2018 | Kong-rey | Category 1 | 75 mph | 57 km |
| 2017 | Talim | Category 4 | 109 mph | 169 km |
| 2017 | Nanmadol | Category 1 | — | 282 km |
| 2017 | Saola | Category 1 | 69 mph | 180 km |
| 2016 | Chaba | Category 5 | 132 mph | 21 km |
| 2016 | Malakas | Category 3 | 109 mph | 248 km |
| 2015 | Chan-hom | Category 4 | 104 mph | 132 km |
| 2015 | Goni | Category 4 | 115 mph | 74 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami 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 | — | 71 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 61°F (16°C) | 5.4 in | Coldest |
| February | 61°F (16°C) | 5.2 in | |
| March | 65°F (18°C) | 6.7 in | |
| April | 70°F (21°C) | 7.1 in | |
| May | 75°F (24°C) | 9.3 in | |
| June | 80°F (27°C) | 9.7 in | |
| July | 83°F (28°C) | 7.0 in | Warmest |
| August | 83°F (28°C) | 10.0 in | Wettest |
| September | 80°F (27°C) | 8.5 in | |
| October | 76°F (25°C) | 7.0 in | |
| November | 71°F (22°C) | 5.6 in | |
| December | 65°F (18°C) | 4.7 in | Driest |
Kumejima has a seasonal temperature swing of 22°F / from 61°F in January to 83°F in July. Total annual precipitation is 86.1 inches, with August being the wettest month (10.0") and December the driest (4.7").