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Weather & Climate in Sukumo, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sukumo enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 43°F in January while summers reach 78°F in July. The area gets 179 sunny days per year. Annual precipitation totals 86.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 39 feet.
Temperature
43°F Jan (6°C)
78°F Jul (26°C)
| Annual Average | 60.8°F |
| 13% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 179 days/yr |
Geography
| Elevation | 39 ft (12 m) |
| Area | 110.5 sq mi (286.2 km²) |
| Population Density | 175/sq mi |
| Coordinates | 32.9333°N, 132.7333°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
262 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.8.
| Mar 24, 2001 | 16 km SSW of Kure, Japan | M6.8 | 129 km | 50 km |
| Jun 11, 2006 | 15 km S of Tsukawaki, Japan | M6.3 | 150 km | 140 km |
| Jan 21, 2022 | 27 km SSE of Saiki, Japan | M6.3 | 69 km | 39 km |
| Apr 17, 2024 | 18 km W of Uwajima, Japan | M6.3 | 49 km | 32 km |
| Mar 13, 2014 | 32 km SSW of Hikari, Japan | M6.3 | 119 km | 79 km |
| Aug 28, 2014 | 53 km E of Takanabe, Japan | M5.8 | 113 km | 20 km |
| Apr 25, 2001 | 18 km SE of Saiki, Japan | M5.7 | 67 km | 33 km |
| May 9, 2019 | 46 km ESE of Miyazaki, Japan | M5.6 | 149 km | 22 km |
| Apr 15, 2016 | 10 km NE of Aso, Japan | M5.5 | 147 km | 13 km |
| Oct 19, 1996 | 37 km ESE of Miyazaki, Japan | M5.5 | 150 km | 33 km |
| May 22, 1998 | 9 km NE of Bungo-Takada-shi, Japan | M5.5 | 137 km | 81 km |
| Jul 12, 2015 | 12 km SSW of Usuki, Japan | M5.5 | 92 km | 53 km |
| Aug 16, 2025 | 32 km ESE of Takanabe, Japan | M5.5 | 134 km | 30 km |
| Mar 27, 2006 | 45 km SSE of Saiki, Japan | M5.5 | 65 km | 35 km |
| Nov 4, 2002 | Kyushu, Japan | M5.4 | 126 km | 33 km |
| Mar 27, 2019 | 57 km E of Takanabe, Japan | M5.3 | 105 km | 19 km |
| Mar 2, 2017 | 39 km SSE of Saiki, Japan | M5.3 | 68 km | 44 km |
| Jul 17, 2021 | 29 km NE of Kitsuki, Japan | M5.2 | 114 km | 64 km |
| Jan 13, 2025 | 24 km ESE of Takanabe, Japan | M5.2 | 140 km | 40 km |
| Aug 25, 2015 | 22 km ESE of Takanabe, Japan | M5.2 | 134 km | 36 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
61 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 | 233 km |
| 2023 | Lan | Category 1 | 69 mph | 289 km |
| 2022 | Nanmadol | Category 3 | 104 mph | 212 km |
| 2020 | Chan-hom | Category 1 | 81 mph | 258 km |
| 2019 | Francisco | Category 1 | 81 mph | 148 km |
| 2018 | Jebi | Category 3 | 98 mph | 116 km |
| 2018 | Trami | Category 1 | 98 mph | 75 km |
| 2018 | Cimaron | Category 1 | 92 mph | 158 km |
| 2017 | Noru | Category 1 | 69 mph | 51 km |
| 2016 | Malakas | Category 3 | 92 mph | 73 km |
| 2015 | Goni | Category 3 | 104 mph | 218 km |
| 2015 | Nangka | Category 1 | 86 mph | 146 km |
| 2014 | Phanfone | Category 2 | 98 mph | 168 km |
| 2014 | Halong | Category 1 | 86 mph | 51 km |
| 2012 | Jelawat | Category 1 | 98 mph | 194 km |
| 2011 | Roke | Category 4 | 98 mph | 230 km |
| 2011 | Ma-on | Category 1 | 86 mph | 51 km |
| 2009 | Melor | Category 1 | 92 mph | 223 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 137 km |
| 2007 | Usagi | Category 3 | 104 mph | 115 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
17 tsunamis recorded within 500 km. Highest wave on record: 8.0 m (26 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1596 | BEPPU BAY, KYUSHU | Eruption + Earthquake | 8.0 m | 708 | 105 km |
| 1968 | SEIKAIDO | Earthquake | 3.1 m | 1 | 74 km |
| 684 | NANKAIDO | Earthquake | 3.0 m | — | 128 km |
| 1769 | SW. KYUSHU ISLAND | Earthquake | 2.5 m | — | 98 km |
| 1941 | SEIKAIDO | Earthquake | 1.2 m | 2 | 120 km |
| 1939 | SEIKAIDO | Earthquake | 0.8 m | 1 | 98 km |
| 1931 | SEIKAIDO | Earthquake | 0.8 m | 1 | 101 km |
| 1929 | HYUGANADA SEA | Earthquake | 0.7 m | — | 146 km |
| 1970 | SEIKAIDO | Earthquake | 0.3 m | — | 127 km |
| 1899 | SEIKAIDO | Earthquake | 0.3 m | — | 134 km |
| 1984 | KYUSHU, JAPAN | Earthquake | 0.2 m | — | 96 km |
| 1969 | RYUKYU ISLANDS | Earthquake | 0.1 m | — | 101 km |
| 1987 | KYUSHU ISLAND | Earthquake | 0.0 m | 2 | 131 km |
| 1899 | SEIKAIDO | Earthquake | — | — | 48 km |
| 1715 | SEIKAIDO | Earthquake | — | — | 105 km |
| 1698 | SEIKAIDO-NANKAIDO | Earthquake | — | — | 105 km |
| 1597 | BEPPU BAY, JAPAN | Eruption + Earthquake | — | 40 | 113 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Yufu-Tsurumi (131 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Yufu-Tsurumi | Lava dome(s) | 1,584 m (5,197 ft) | 867 | 131 km |
| Kujusan | Stratovolcano(es) | 1,791 m (5,876 ft) | 1996 | 139 km |
| Asosan | Caldera | 1,592 m (5,223 ft) | 2020 | 152 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 2.5 in | Coldest, Driest |
| February | 44°F (7°C) | 3.8 in | |
| March | 50°F (10°C) | 5.9 in | |
| April | 58°F (15°C) | 8.6 in | |
| May | 65°F (18°C) | 9.7 in | |
| June | 71°F (22°C) | 12.3 in | Wettest |
| July | 78°F (26°C) | 12.0 in | |
| August | 79°F (26°C) | 6.2 in | Warmest |
| September | 74°F (23°C) | 11.8 in | |
| October | 65°F (18°C) | 7.3 in | |
| November | 56°F (13°C) | 4.0 in | |
| December | 47°F (8°C) | 2.8 in |
Sukumo has a seasonal temperature swing of 37°F / from 43°F in January to 79°F in August. Total annual precipitation is 86.7 inches, with June being the wettest month (12.3") and January the driest (2.5").