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Weather & Climate in Shintomi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Shintomi enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 44°F in January while summers reach 80°F in July. The area gets 169 sunny days per year, below the national average of 205. Annual precipitation totals 95.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 13 feet.
Temperature
44°F Jan (7°C)
80°F Jul (26°C)
| Annual Average | 62.1°F |
| 15% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 80°F (26°C) |
| Sunny Days | 169 days/yr |
Geography
| Elevation | 13 ft (4 m) |
| Area | 23.8 sq mi (61.7 km²) |
| Population Density | 695/sq mi |
| Coordinates | 32.0632°N, 131.4869°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
663 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Aug 8, 2024 | 2024 Hyuganada Sea, Japan Earthquake | M7.1 | 34 km | 24 km |
| Apr 15, 2016 | 6 km ESE of Kumamoto, Japan | M7.0 | 106 km | 10 km |
| Jan 13, 2025 | 15 km SE of Miyazaki, Japan | M6.8 | 26 km | 39 km |
| Dec 2, 1996 | 17 km SW of Miyazaki, Japan | M6.7 | 35 km | 49 km |
| Oct 19, 1996 | 5 km SE of Miyazaki, Japan | M6.7 | 20 km | 22 km |
| Jun 11, 2006 | 15 km S of Tsukawaki, Japan | M6.3 | 123 km | 140 km |
| Jan 21, 2022 | 27 km SSE of Saiki, Japan | M6.3 | 90 km | 39 km |
| Apr 14, 2016 | 2 km SSE of Kumamoto, Japan | M6.2 | 109 km | 9 km |
| May 9, 2019 | 43 km ESE of Miyazaki, Japan | M6.2 | 47 km | 22 km |
| May 13, 1997 | 1 km WNW of Satsumasendai, Japan | M6.1 | 117 km | 33 km |
| Apr 2, 2025 | 56 km ENE of Nishinoomote, Japan | M6.1 | 121 km | 29 km |
| Mar 26, 1997 | 16 km NE of Satsumasendai, Japan | M6.1 | 101 km | 10 km |
| Apr 14, 2016 | 5 km ENE of Uto, Japan | M6.0 | 101 km | 8 km |
| Dec 16, 1998 | 22 km S of Kushima, Japan | M6.0 | 88 km | 42 km |
| Jun 25, 2000 | 33 km S of Kushima, Japan | M6.0 | 101 km | 10 km |
| Apr 30, 1994 | 8 km SSE of Kushima, Japan | M5.9 | 74 km | 26 km |
| Aug 28, 2014 | 53 km E of Takanabe, Japan | M5.8 | 55 km | 20 km |
| Apr 5, 2009 | 10 km N of Miyazaki, Japan | M5.8 | 9 km | 26 km |
| Apr 15, 2016 | 6 km S of Kikuchi, Japan | M5.7 | 115 km | 10 km |
| Apr 29, 2017 | 40 km ENE of Nishinoomote, Japan | M5.7 | 139 km | 31 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
73 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Shanshan | Category 3 | 109 mph | 121 km |
| 2022 | Nanmadol | Category 3 | 104 mph | 95 km |
| 2020 | Haishen | Category 3 | 104 mph | 217 km |
| 2020 | Chan-hom | Category 1 | 81 mph | 258 km |
| 2019 | Francisco | Category 1 | 81 mph | 4 km |
| 2018 | Jebi | Category 3 | 98 mph | 189 km |
| 2018 | Trami | Category 2 | 98 mph | 83 km |
| 2018 | Prapiroon | Category 1 | 69 mph | 282 km |
| 2018 | Cimaron | Category 1 | 92 mph | 276 km |
| 2017 | Noru | Category 1 | 75 mph | 82 km |
| 2016 | Malakas | Category 3 | 109 mph | 52 km |
| 2016 | Namtheun | Category 2 | 81 mph | 206 km |
| 2015 | Goni | Category 3 | 104 mph | 118 km |
| 2015 | Nangka | Category 1 | 86 mph | 278 km |
| 2014 | Phanfone | Category 2 | 98 mph | 180 km |
| 2014 | Halong | Category 1 | 86 mph | 128 km |
| 2012 | Damrey | Category 1 | 63 mph | 286 km |
| 2012 | Guchol | Category 1 | 81 mph | 255 km |
| 2012 | Jelawat | Category 1 | 98 mph | 245 km |
| 2011 | Roke | Category 4 | 98 mph | 274 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 | 135 km |
| 1596 | BEPPU BAY, KYUSHU | Eruption + Earthquake | 8.0 m | 708 | 139 km |
| 1780 | SW. KYUSHU ISLAND | Astronomical | 6.0 m | — | 90 km |
| 1662 | HIUGANADA | Earthquake | 5.0 m | 200 | 63 km |
| 1968 | SEIKAIDO | Earthquake | 3.1 m | 1 | 99 km |
| 1914 | SEIKAIDO | Eruption | 3.0 m | 63 | 94 km |
| 1769 | SW. KYUSHU ISLAND | Earthquake | 2.5 m | — | 55 km |
| 1941 | SEIKAIDO | Earthquake | 1.2 m | 2 | 58 km |
| 1939 | SEIKAIDO | Earthquake | 0.8 m | 1 | 55 km |
| 1931 | SEIKAIDO | Earthquake | 0.8 m | 1 | 60 km |
| 1929 | HYUGANADA SEA | Earthquake | 0.7 m | — | 79 km |
| 1961 | SEIKAIDO | Earthquake | 0.7 m | 2 | 59 km |
| 1996 | KYUSHU ISLAND | Earthquake | 0.6 m | — | 20 km |
| 2024 | HYUGANADA SEA | Earthquake | 0.5 m | — | 39 km |
| 1970 | SEIKAIDO | Earthquake | 0.3 m | — | 25 km |
| 1899 | SEIKAIDO | Earthquake | 0.3 m | — | 52 km |
| 2025 | HYUGANADA SEA | Earthquake | 0.2 m | — | 30 km |
| 1996 | SEA OF JAPAN | Earthquake | 0.2 m | — | 35 km |
| 1984 | KYUSHU, JAPAN | Earthquake | 0.2 m | — | 56 km |
| 1969 | RYUKYU ISLANDS | Earthquake | 0.1 m | — | 60 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
9 volcanoes within 200 km. Closest: Kirishimayama (61 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Kirishimayama | Shield | 1,700 m (5,577 ft) | 2018 | 61 km |
| Yonemaru-Sumiyoshiike | Maar(s) | 40 m (131 ft) | -6200 | 91 km |
| Aira | Caldera | 1,117 m (3,665 ft) | 2020 | 94 km |
| Asosan | Caldera | 1,592 m (5,223 ft) | 2020 | 98 km |
| Kujusan | Stratovolcano(es) | 1,791 m (5,876 ft) | 1996 | 116 km |
| Ata | Caldera(s) | 924 m (3,031 ft) | 885 | 128 km |
| Yufu-Tsurumi | Lava dome(s) | 1,584 m (5,197 ft) | 867 | 136 km |
| Unzendake | Complex | 1,483 m (4,865 ft) | 1996 | 136 km |
| Kikai | Caldera | 704 m (2,310 ft) | 2020 | 180 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 2.6 in | Coldest |
| February | 46°F (8°C) | 3.5 in | |
| March | 52°F (11°C) | 6.4 in | |
| April | 60°F (16°C) | 8.8 in | |
| May | 67°F (19°C) | 10.4 in | |
| June | 73°F (23°C) | 16.3 in | Wettest |
| July | 80°F (26°C) | 12.3 in | |
| August | 80°F (27°C) | 11.1 in | Warmest |
| September | 75°F (24°C) | 12.1 in | |
| October | 66°F (19°C) | 6.5 in | |
| November | 57°F (14°C) | 3.5 in | |
| December | 47°F (9°C) | 2.1 in | Driest |
Shintomi has a seasonal temperature swing of 36°F / from 44°F in January to 80°F in August. Total annual precipitation is 95.5 inches, with June being the wettest month (16.3") and December the driest (2.1").