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Weather & Climate in Sashiki, Japan

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Sashiki enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 38°F in January while summers reach 76°F in July. The area gets 178 sunny days per year. Annual precipitation totals 98.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 82 feet.

Temperature

38°F Jan (3°C) 76°F Jul (25°C)
Annual Average57.7°F
7% above US avg
January Average38°F (3°C)
July Average76°F (25°C)
Sunny Days178 days/yr

Geography

Elevation82 ft (25 m)
Area152.8 sq mi (395.6 km²)
Population Density103/sq mi
Coordinates32.3017°N, 130.5038°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 98.0"
158% above US avg
Snowfall 0.0"
Wettest Month (Jun) 18.15"
Driest Month (Dec) 2.76"

Air Quality

Earthquake History

544 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.

Aug 8, 2024 2024 Hyuganada Sea, Japan Earthquake M7.1 112 km 24 km
Apr 15, 2016 6 km ESE of Kumamoto, Japan M7.0 59 km 10 km
Jan 13, 2025 15 km SE of Miyazaki, Japan M6.8 112 km 39 km
Dec 2, 1996 17 km SW of Miyazaki, Japan M6.7 95 km 49 km
Oct 19, 1996 5 km SE of Miyazaki, Japan M6.7 102 km 22 km
Jun 11, 2006 15 km S of Tsukawaki, Japan M6.3 110 km 140 km
May 9, 2019 43 km ESE of Miyazaki, Japan M6.2 140 km 22 km
Sep 3, 2009 32 km WSW of Makurazaki, Japan M6.2 137 km 163 km
Apr 14, 2016 2 km SSE of Kumamoto, Japan M6.2 57 km 9 km
Mar 26, 1997 16 km NE of Satsumasendai, Japan M6.1 43 km 10 km
May 13, 1997 1 km WNW of Satsumasendai, Japan M6.1 57 km 33 km
Jun 25, 2000 33 km S of Kushima, Japan M6.0 141 km 10 km
Dec 16, 1998 22 km S of Kushima, Japan M6.0 135 km 42 km
Apr 14, 2016 5 km ENE of Uto, Japan M6.0 49 km 8 km
Apr 30, 1994 8 km SSE of Kushima, Japan M5.9 123 km 26 km
Apr 5, 2009 10 km N of Miyazaki, Japan M5.8 92 km 26 km
Sep 23, 1992 17 km SSW of Makurazaki, Japan M5.8 133 km 161 km
Aug 28, 2014 53 km E of Takanabe, Japan M5.8 149 km 20 km
May 31, 2005 10 km SSW of Kushima, Japan M5.7 120 km 34 km
Oct 19, 1996 19 km ENE of Miyazaki, Japan M5.7 111 km 33 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Hurricane History

69 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 29 km
2022 Nanmadol Category 3 104 mph 35 km
2020 Haishen Category 3 104 mph 131 km
2020 Maysak Category 2 92 mph 263 km
2019 Francisco Category 1 81 mph 67 km
2018 Jebi Category 3 98 mph 283 km
2018 Trami Category 2 98 mph 166 km
2018 Prapiroon Category 1 75 mph 188 km
2017 Noru Category 1 75 mph 164 km
2016 Malakas Category 3 109 mph 122 km
2016 Namtheun Category 2 81 mph 177 km
2015 Goni Category 3 104 mph 22 km
2014 Phanfone Category 2 98 mph 260 km
2014 Halong Category 1 86 mph 219 km
2013 Danas Category 1 75 mph 243 km
2012 Sanba Category 3 104 mph 245 km
2012 Damrey Category 1 63 mph 224 km
2011 Ma-on Category 1 86 mph 224 km
2007 Usagi Category 3 104 mph 105 km
2007 Man-yi Category 2 86 mph 93 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 53 km
1780 SW. KYUSHU ISLAND Astronomical 6.0 m - 80 km
1914 SEIKAIDO Eruption 3.0 m 63 82 km
1769 SW. KYUSHU ISLAND Earthquake 2.5 m - 141 km
1939 SEIKAIDO Earthquake 0.8 m 1 141 km
1961 SEIKAIDO Earthquake 0.7 m 2 145 km
1996 KYUSHU ISLAND Earthquake 0.6 m - 102 km
2024 HYUGANADA SEA Earthquake 0.5 m - 116 km
1970 SEIKAIDO Earthquake 0.3 m - 113 km
1899 SEIKAIDO Earthquake 0.3 m - 148 km
2025 HYUGANADA SEA Earthquake 0.2 m - 114 km
1996 SEA OF JAPAN Earthquake 0.2 m - 95 km
1984 KYUSHU, JAPAN Earthquake 0.2 m - 136 km
1987 KYUSHU ISLAND Earthquake 0.0 m 2 129 km
1828 AMAKUSA SEA Earthquake - - 66 km
1781 SW. KYUSHU ISLAND Astronomical - 38 82 km
1780 SW. KYUSHU ISLAND Astronomical - - 80 km
1619 YATSUSHIRO, JAPAN Earthquake - - 24 km
766 N. KAGOSHIMA BAY Astronomical - - 80 km
744 SW. KYUSHU ISLAND Earthquake - 1,520 11 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

10 volcanoes within 200 km. Closest: Kirishimayama (53 km).

Name Type Elevation Last Eruption Distance
Kirishimayama Shield 1,700 m (5,577 ft) 2018 53 km
Unzendake Complex 1,483 m (4,865 ft) 1996 55 km
Yonemaru-Sumiyoshiike Maar(s) 40 m (131 ft) -6200 60 km
Aira Caldera 1,117 m (3,665 ft) 2020 80 km
Asosan Caldera 1,592 m (5,223 ft) 2020 86 km
Kujusan Stratovolcano(es) 1,791 m (5,876 ft) 1996 112 km
Ata Caldera(s) 924 m (3,031 ft) 885 120 km
Yufu-Tsurumi Lava dome(s) 1,584 m (5,197 ft) 867 137 km
Fukue Shield(s) 315 m (1,033 ft) -400 160 km
Kikai Caldera 704 m (2,310 ft) 2020 169 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 38°F (3°C) 3.4 in Coldest
February 40°F (5°C) 4.3 in
March 46°F (8°C) 6.6 in
April 56°F (13°C) 8.5 in
May 63°F (17°C) 10.0 in
June 69°F (21°C) 18.2 in Wettest
July 76°F (25°C) 18.2 in
August 77°F (25°C) 9.7 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) 2.8 in Driest

Sashiki has a seasonal temperature swing of 39°F / from 38°F in January to 77°F in August. Total annual precipitation is 98.0 inches, with June being the wettest month (18.2") and December the driest (2.8").

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