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Weather & Climate in Hitoyoshi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hitoyoshi enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 38°F in January while summers reach 77°F in July. The area gets 178 sunny days per year. Annual precipitation totals 98.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 427 feet.
Temperature
38°F Jan (3°C)
77°F Jul (25°C)
| Annual Average | 57.9°F |
| 7% above US avg | |
| January Average | 38°F (3°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 178 days/yr |
Geography
| Elevation | 427 ft (130 m) |
| Area | 119.7 sq mi (310.0 km²) |
| Population Density | 318/sq mi |
| Coordinates | 32.2167°N, 130.7500°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
635 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Aug 8, 2024 | 2024 Hyuganada Sea, Japan Earthquake | M7.1 | 87 km | 24 km |
| Apr 15, 2016 | 6 km ESE of Kumamoto, Japan | M7.0 | 64 km | 10 km |
| Jan 13, 2025 | 15 km SE of Miyazaki, Japan | M6.8 | 87 km | 39 km |
| Dec 2, 1996 | 17 km SW of Miyazaki, Japan | M6.7 | 71 km | 49 km |
| Oct 19, 1996 | 5 km SE of Miyazaki, Japan | M6.7 | 77 km | 22 km |
| Jan 21, 2022 | 27 km SSE of Saiki, Japan | M6.3 | 134 km | 39 km |
| Jun 11, 2006 | 15 km S of Tsukawaki, Japan | M6.3 | 109 km | 140 km |
| May 9, 2019 | 43 km ESE of Miyazaki, Japan | M6.2 | 115 km | 22 km |
| Apr 14, 2016 | 2 km SSE of Kumamoto, Japan | M6.2 | 64 km | 9 km |
| Sep 3, 2009 | 32 km WSW of Makurazaki, Japan | M6.2 | 139 km | 163 km |
| May 13, 1997 | 1 km WNW of Satsumasendai, Japan | M6.1 | 62 km | 33 km |
| Mar 26, 1997 | 16 km NE of Satsumasendai, Japan | M6.1 | 45 km | 10 km |
| Jun 25, 2000 | 33 km S of Kushima, Japan | M6.0 | 123 km | 10 km |
| Dec 16, 1998 | 22 km S of Kushima, Japan | M6.0 | 115 km | 42 km |
| Apr 14, 2016 | 5 km ENE of Uto, Japan | M6.0 | 54 km | 8 km |
| Apr 30, 1994 | 8 km SSE of Kushima, Japan | M5.9 | 102 km | 26 km |
| Sep 23, 1992 | 17 km SSW of Makurazaki, Japan | M5.8 | 131 km | 161 km |
| Aug 28, 2014 | 53 km E of Takanabe, Japan | M5.8 | 125 km | 20 km |
| Apr 5, 2009 | 10 km N of Miyazaki, Japan | M5.8 | 67 km | 26 km |
| Apr 15, 2016 | 6 km S of Kikuchi, Japan | M5.7 | 79 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
70 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Shanshan | Category 3 | 109 mph | 53 km |
| 2022 | Nanmadol | Category 3 | 104 mph | 42 km |
| 2020 | Haishen | Category 3 | 104 mph | 150 km |
| 2020 | Maysak | Category 1 | 92 mph | 288 km |
| 2019 | Francisco | Category 1 | 81 mph | 52 km |
| 2018 | Jebi | Category 3 | 98 mph | 258 km |
| 2018 | Trami | Category 2 | 98 mph | 142 km |
| 2018 | Prapiroon | Category 1 | 75 mph | 213 km |
| 2017 | Noru | Category 1 | 75 mph | 142 km |
| 2016 | Malakas | Category 3 | 109 mph | 99 km |
| 2016 | Namtheun | Category 2 | 81 mph | 177 km |
| 2015 | Goni | Category 3 | 104 mph | 47 km |
| 2014 | Phanfone | Category 2 | 98 mph | 237 km |
| 2014 | Halong | Category 1 | 86 mph | 194 km |
| 2013 | Danas | Category 1 | 75 mph | 267 km |
| 2012 | Sanba | Category 3 | 104 mph | 268 km |
| 2012 | Damrey | Category 1 | 63 mph | 236 km |
| 2012 | Guchol | Category 1 | 81 mph | 290 km |
| 2011 | Ma-on | Category 1 | 86 mph | 199 km |
| 2007 | Usagi | Category 3 | 104 mph | 86 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
20 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 | 73 km |
| 1596 | BEPPU BAY, KYUSHU | Eruption + Earthquake | 8.0 m | 708 | 150 km |
| 1780 | SW. KYUSHU ISLAND | Astronomical | 6.0 m | — | 69 km |
| 1662 | HIUGANADA | Earthquake | 5.0 m | 200 | 131 km |
| 1914 | SEIKAIDO | Eruption | 3.0 m | 63 | 71 km |
| 1769 | SW. KYUSHU ISLAND | Earthquake | 2.5 m | — | 118 km |
| 1941 | SEIKAIDO | Earthquake | 1.2 m | 2 | 129 km |
| 1939 | SEIKAIDO | Earthquake | 0.8 m | 1 | 118 km |
| 1931 | SEIKAIDO | Earthquake | 0.8 m | 1 | 127 km |
| 1929 | HYUGANADA SEA | Earthquake | 0.7 m | — | 148 km |
| 1961 | SEIKAIDO | Earthquake | 0.7 m | 2 | 121 km |
| 1996 | KYUSHU ISLAND | Earthquake | 0.6 m | — | 77 km |
| 2024 | HYUGANADA SEA | Earthquake | 0.5 m | — | 92 km |
| 1970 | SEIKAIDO | Earthquake | 0.3 m | — | 89 km |
| 1899 | SEIKAIDO | Earthquake | 0.3 m | — | 123 km |
| 2025 | HYUGANADA SEA | Earthquake | 0.2 m | — | 89 km |
| 1996 | SEA OF JAPAN | Earthquake | 0.2 m | — | 71 km |
| 1984 | KYUSHU, JAPAN | Earthquake | 0.2 m | — | 114 km |
| 1969 | RYUKYU ISLANDS | Earthquake | 0.1 m | — | 127 km |
| 1987 | KYUSHU ISLAND | Earthquake | 0.0 m | 2 | 104 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
10 volcanoes within 200 km. Closest: Kirishimayama (33 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Kirishimayama | Shield | 1,700 m (5,577 ft) | 2018 | 33 km |
| Yonemaru-Sumiyoshiike | Maar(s) | 40 m (131 ft) | -6200 | 52 km |
| Aira | Caldera | 1,117 m (3,665 ft) | 2020 | 70 km |
| Unzendake | Complex | 1,483 m (4,865 ft) | 1996 | 74 km |
| Asosan | Caldera | 1,592 m (5,223 ft) | 2020 | 81 km |
| Kujusan | Stratovolcano(es) | 1,791 m (5,876 ft) | 1996 | 107 km |
| Ata | Caldera(s) | 924 m (3,031 ft) | 885 | 112 km |
| Yufu-Tsurumi | Lava dome(s) | 1,584 m (5,197 ft) | 867 | 133 km |
| Kikai | Caldera | 704 m (2,310 ft) | 2020 | 164 km |
| Fukue | Shield(s) | 315 m (1,033 ft) | -400 | 185 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 3.2 in | Coldest |
| February | 40°F (5°C) | 4.2 in | |
| March | 46°F (8°C) | 6.5 in | |
| April | 56°F (13°C) | 8.6 in | |
| May | 63°F (17°C) | 10.1 in | |
| June | 70°F (21°C) | 18.3 in | Wettest |
| July | 77°F (25°C) | 18.1 in | |
| August | 78°F (25°C) | 9.8 in | Warmest |
| September | 72°F (22°C) | 8.5 in | |
| October | 62°F (17°C) | 4.6 in | |
| November | 52°F (11°C) | 3.5 in | |
| December | 42°F (6°C) | 2.7 in | Driest |
Hitoyoshi has a seasonal temperature swing of 39°F / from 38°F in January to 78°F in August. Total annual precipitation is 98.1 inches, with June being the wettest month (18.3") and December the driest (2.7").