All Countries
Weather & Climate in Iki, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Iki enjoys a temperate climate with an average annual temperature of 62°F (16°C). Winters average 43°F in January while summers reach 79°F in July. The area gets 222 sunny days per year, above the national average. Annual precipitation totals 63.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 148 feet.
Temperature
43°F Jan (6°C)
79°F Jul (26°C)
| Annual Average | 61.5°F |
| 14% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 222 days/yr |
Geography
| Elevation | 148 ft (45 m) |
| Area | 696.4 sq mi (1,803.7 km²) |
| Population Density | 44/sq mi |
| Coordinates | 33.7829°N, 129.7209°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
93 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 | 146 km | 10 km |
| Mar 20, 2005 | 28 km NNW of Maebaru-ch??, Japan | M6.6 | 38 km | 10 km |
| Apr 14, 2016 | 2 km SSE of Kumamoto, Japan | M6.2 | 144 km | 9 km |
| Apr 15, 2016 | 6 km S of Kikuchi, Japan | M5.7 | 139 km | 10 km |
| Apr 19, 2005 | 8 km NNW of Maebaru-ch??, Japan | M5.5 | 45 km | 19 km |
| Apr 14, 2016 | 4 km NNE of Uto, Japan | M5.3 | 149 km | 10 km |
| Oct 28, 1991 | 13 km SSW of Ube, Japan | M5.2 | 139 km | 17 km |
| Apr 16, 2016 | 8 km ENE of Kumamoto, Japan | M5.2 | 144 km | 9 km |
| Apr 16, 2016 | 4 km N of Uto, Japan | M5.1 | 147 km | 9 km |
| Aug 6, 2025 | 15 km SSW of Tsukawaki, Japan | M4.9 | 148 km | 10 km |
| Apr 28, 2016 | 10 km ESE of Shimabara, Japan | M4.9 | 133 km | 10 km |
| Apr 14, 2016 | 6 km ESE of Kumamoto, Japan | M4.9 | 147 km | 10 km |
| Mar 22, 2005 | 17 km N of Maebaru-ch??, Japan | M4.9 | 46 km | 10 km |
| Aug 31, 2016 | 9 km W of Uto, Japan | M4.9 | 145 km | 10 km |
| May 11, 2017 | 7 km NW of Uto, Japan | M4.8 | 143 km | 10 km |
| Apr 19, 2016 | 12 km W of Matsubase, Japan | M4.8 | 149 km | 10 km |
| Jun 18, 2016 | 7 km W of Uto, Japan | M4.8 | 147 km | 9 km |
| Apr 16, 2016 | 5 km NNE of Uto, Japan | M4.8 | 147 km | 6 km |
| Oct 5, 2011 | Kyushu, Japan | M4.8 | 139 km | 16 km |
| Apr 17, 2016 | 8 km WNW of Uto, Japan | M4.7 | 144 km | 3 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
52 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 | 153 km |
| 2022 | Nanmadol | Category 2 | 98 mph | 84 km |
| 2022 | Hinnamnor | Category 2 | 86 mph | 157 km |
| 2020 | Haishen | Category 2 | 98 mph | 67 km |
| 2020 | Maysak | Category 2 | 98 mph | 139 km |
| 2019 | Francisco | Category 1 | 81 mph | 128 km |
| 2018 | Prapiroon | Category 1 | 75 mph | 48 km |
| 2016 | Chaba | Category 2 | 81 mph | 164 km |
| 2016 | Malakas | Category 2 | 86 mph | 294 km |
| 2015 | Goni | Category 3 | 104 mph | 73 km |
| 2013 | Danas | Category 2 | 81 mph | 113 km |
| 2012 | Sanba | Category 3 | 98 mph | 154 km |
| 2007 | Usagi | Category 3 | 98 mph | 146 km |
| 2007 | Nari | Category 2 | 86 mph | 228 km |
| 2007 | Man-yi | Category 2 | 86 mph | 270 km |
| 2006 | Shanshan | Category 2 | 98 mph | 67 km |
| 2005 | Nabi | Category 2 | 92 mph | 66 km |
| 2004 | Songda | Category 2 | 86 mph | 81 km |
| 2004 | Chaba | Category 2 | 92 mph | 132 km |
| 2004 | Meari | Category 1 | 69 mph | 243 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
2 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 | 127 km |
| 1828 | AMAKUSA SEA | Earthquake | - | - | 133 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Unzendake (126 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Unzendake | Complex | 1,483 m (4,865 ft) | 1996 | 126 km |
| Fukue | Shield(s) | 315 m (1,033 ft) | -400 | 149 km |
| Kujusan | Stratovolcano(es) | 1,791 m (5,876 ft) | 1996 | 162 km |
| Asosan | Caldera | 1,592 m (5,223 ft) | 2020 | 163 km |
| Yufu-Tsurumi | Lava dome(s) | 1,584 m (5,197 ft) | 867 | 164 km |
| Abu | Shield(s) | 641 m (2,103 ft) | -6850 | 190 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 2.4 in | Coldest, Driest |
| February | 45°F (7°C) | 2.7 in | |
| March | 50°F (10°C) | 3.7 in | |
| April | 58°F (15°C) | 5.5 in | |
| May | 65°F (19°C) | 5.3 in | |
| June | 71°F (22°C) | 10.8 in | Wettest |
| July | 79°F (26°C) | 8.8 in | |
| August | 81°F (27°C) | 5.7 in | Warmest |
| September | 75°F (24°C) | 8.9 in | |
| October | 66°F (19°C) | 3.6 in | |
| November | 57°F (14°C) | 3.2 in | |
| December | 48°F (9°C) | 2.6 in |
Iki has a seasonal temperature swing of 37°F / from 43°F in January to 81°F in August. Total annual precipitation is 63.1 inches, with June being the wettest month (10.8") and January the driest (2.4").