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Weather & Climate in Yoshitomi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yoshitomi enjoys a temperate climate with an average annual temperature of 60°F (15°C). Winters average 41°F in January while summers reach 79°F in July. The area gets 217 sunny days per year. Annual precipitation totals 65.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 20 feet.
Temperature
41°F Jan (5°C)
79°F Jul (26°C)
| Annual Average | 59.7°F |
| 11% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 217 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 2.2 sq mi (5.7 km²) |
| Population Density | 3,111/sq mi |
| Coordinates | 33.6025°N, 131.1760°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
319 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.0.
| Apr 15, 2016 | 6 km ESE of Kumamoto, Japan | M7.0 | 98 km | 10 km |
| Mar 24, 2001 | 16 km SSW of Kure, Japan | M6.8 | 136 km | 50 km |
| Mar 20, 2005 | 28 km NNW of Maebaru-ch??, Japan | M6.6 | 99 km | 10 km |
| Apr 17, 2024 | 18 km W of Uwajima, Japan | M6.3 | 117 km | 32 km |
| Jun 11, 2006 | 15 km S of Tsukawaki, Japan | M6.3 | 52 km | 140 km |
| Mar 13, 2014 | 32 km SSW of Hikari, Japan | M6.3 | 61 km | 79 km |
| Jan 21, 2022 | 27 km SSE of Saiki, Japan | M6.3 | 126 km | 39 km |
| Apr 14, 2016 | 2 km SSE of Kumamoto, Japan | M6.2 | 101 km | 9 km |
| Apr 14, 2016 | 5 km ENE of Uto, Japan | M6.0 | 109 km | 8 km |
| Jun 25, 1997 | 17 km E of Hagi, Japan | M5.9 | 97 km | 10 km |
| Apr 25, 2001 | 18 km SE of Saiki, Japan | M5.7 | 117 km | 33 km |
| Apr 15, 2016 | 6 km S of Kikuchi, Japan | M5.7 | 83 km | 10 km |
| Mar 27, 2006 | 45 km SSE of Saiki, Japan | M5.5 | 144 km | 35 km |
| Apr 15, 2016 | 10 km NE of Aso, Japan | M5.5 | 66 km | 13 km |
| Apr 19, 2005 | 8 km NNW of Maebaru-ch??, Japan | M5.5 | 92 km | 19 km |
| May 22, 1998 | 9 km NE of Bungo-Takada-shi, Japan | M5.5 | 31 km | 81 km |
| Jul 12, 2015 | 12 km SSW of Usuki, Japan | M5.5 | 84 km | 53 km |
| Apr 18, 2016 | 8 km NNE of Aso, Japan | M5.5 | 66 km | 10 km |
| Apr 14, 2016 | 14 km ESE of Kumamoto, Japan | M5.4 | 101 km | 10 km |
| Nov 4, 2002 | Kyushu, Japan | M5.4 | 139 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
58 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Shanshan | Category 2 | 98 mph | 147 km |
| 2022 | Nanmadol | Category 2 | 98 mph | 53 km |
| 2022 | Hinnamnor | Category 1 | 81 mph | 254 km |
| 2020 | Haishen | Category 2 | 98 mph | 200 km |
| 2020 | Maysak | Category 1 | 92 mph | 274 km |
| 2019 | Francisco | Category 1 | 81 mph | 95 km |
| 2018 | Jebi | Category 3 | 98 mph | 279 km |
| 2018 | Trami | Category 1 | 98 mph | 224 km |
| 2018 | Prapiroon | Category 1 | 75 mph | 184 km |
| 2017 | Noru | Category 1 | 69 mph | 202 km |
| 2016 | Malakas | Category 2 | 86 mph | 193 km |
| 2016 | Chaba | Category 1 | 75 mph | 297 km |
| 2015 | Goni | Category 3 | 104 mph | 71 km |
| 2015 | Nangka | Category 1 | 81 mph | 298 km |
| 2014 | Halong | Category 1 | 86 mph | 209 km |
| 2013 | Danas | Category 1 | 69 mph | 248 km |
| 2012 | Sanba | Category 2 | 86 mph | 289 km |
| 2011 | Ma-on | Category 1 | 86 mph | 214 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 299 km |
| 2007 | Usagi | Category 3 | 98 mph | 16 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
9 tsunamis recorded within 500 km. Highest wave on record: 55.0 m (180 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1792 | SHIMABARA BAY, KYUSHU ISLAND | Landslide | 55.0 m | 15,000 | 125 km |
| 1026 | OFF MASUDA, SHIMANE PREFECTURE | Earthquake | 10.0 m | 1,001 | 145 km |
| 1596 | BEPPU BAY, KYUSHU | Eruption + Earthquake | 8.0 m | 708 | 59 km |
| 1899 | SEIKAIDO | Earthquake | — | — | 145 km |
| 1715 | SEIKAIDO | Earthquake | — | — | 59 km |
| 1698 | SEIKAIDO-NANKAIDO | Earthquake | — | — | 59 km |
| 1619 | YATSUSHIRO, JAPAN | Earthquake | — | — | 134 km |
| 1597 | BEPPU BAY, JAPAN | Eruption + Earthquake | — | 40 | 52 km |
| 744 | SW. KYUSHU ISLAND | Earthquake | — | 1,520 | 148 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Yufu-Tsurumi (41 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Yufu-Tsurumi | Lava dome(s) | 1,584 m (5,197 ft) | 867 | 41 km |
| Kujusan | Stratovolcano(es) | 1,791 m (5,876 ft) | 1996 | 58 km |
| Asosan | Caldera | 1,592 m (5,223 ft) | 2020 | 80 km |
| Abu | Shield(s) | 641 m (2,103 ft) | -6850 | 107 km |
| Unzendake | Complex | 1,483 m (4,865 ft) | 1996 | 124 km |
| Kirishimayama | Shield | 1,700 m (5,577 ft) | 2018 | 188 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 2.1 in | Coldest, Driest |
| February | 42°F (5°C) | 3.2 in | |
| March | 47°F (9°C) | 4.0 in | |
| April | 57°F (14°C) | 5.9 in | |
| May | 64°F (18°C) | 6.0 in | |
| June | 72°F (22°C) | 10.7 in | Wettest |
| July | 79°F (26°C) | 10.6 in | |
| August | 80°F (27°C) | 5.7 in | Warmest |
| September | 73°F (23°C) | 8.7 in | |
| October | 64°F (18°C) | 4.1 in | |
| November | 54°F (12°C) | 2.6 in | |
| December | 45°F (7°C) | 2.1 in |
Yoshitomi has a seasonal temperature swing of 40°F / from 41°F in January to 80°F in August. Total annual precipitation is 65.6 inches, with June being the wettest month (10.7") and January the driest (2.1").