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Weather & Climate in Nagato, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nagato enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 41°F in January while summers reach 78°F in July. The area gets 210 sunny days per year. Annual precipitation totals 69.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 13 feet.
Temperature
41°F Jan (5°C)
78°F Jul (25°C)
| Annual Average | 59.0°F |
| 9% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 210 days/yr |
Geography
| Elevation | 13 ft (4 m) |
| Area | 138.2 sq mi (357.9 km²) |
| Population Density | 235/sq mi |
| Coordinates | 34.3833°N, 131.2000°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
119 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 | 126 km | 50 km |
| Mar 20, 2005 | 28 km NNW of Maebaru-ch??, Japan | M6.6 | 118 km | 10 km |
| Mar 13, 2014 | 32 km SSW of Hikari, Japan | M6.3 | 97 km | 79 km |
| Jun 11, 2006 | 15 km S of Tsukawaki, Japan | M6.3 | 139 km | 140 km |
| Jun 25, 1997 | 17 km E of Hagi, Japan | M5.9 | 37 km | 10 km |
| Apr 19, 2005 | 8 km NNW of Maebaru-ch??, Japan | M5.5 | 126 km | 19 km |
| May 22, 1998 | 9 km NE of Bungo-Takada-shi, Japan | M5.5 | 90 km | 81 km |
| Jul 17, 2021 | 29 km NE of Kitsuki, Japan | M5.2 | 103 km | 64 km |
| Oct 28, 1991 | 13 km SSW of Ube, Japan | M5.2 | 62 km | 17 km |
| Mar 25, 2001 | 22 km WNW of H?j?, Japan | M5.2 | 130 km | 43 km |
| Apr 2, 1997 | 34 km WSW of ?zu, Japan | M5.1 | 148 km | 46 km |
| Apr 15, 2016 | 11 km WSW of Beppu, Japan | M5.1 | 127 km | 10 km |
| Jan 3, 1991 | 22 km W of ?zu, Japan | M5.0 | 143 km | 63 km |
| Jun 3, 2011 | 9 km ENE of G?tsuch?, Japan | M5.0 | 125 km | 10 km |
| Feb 26, 2024 | 18 km N of Yawatahama, Japan | M4.9 | 140 km | 42 km |
| Jul 1, 2016 | 17 km NE of Kitsuki, Japan | M4.9 | 109 km | 79 km |
| Aug 6, 2025 | 15 km SSW of Tsukawaki, Japan | M4.9 | 139 km | 10 km |
| Mar 8, 2020 | 28 km NE of Usuki, Japan | M4.9 | 138 km | 58 km |
| Mar 22, 2005 | 17 km N of Maebaru-ch??, Japan | M4.9 | 118 km | 10 km |
| Aug 15, 2016 | 26 km ENE of Kitsuki, Japan | M4.9 | 119 km | 72 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
50 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Shanshan | Category 1 | 86 mph | 225 km |
| 2022 | Nanmadol | Category 1 | 86 mph | 103 km |
| 2022 | Hinnamnor | Category 1 | 81 mph | 204 km |
| 2020 | Haishen | Category 2 | 98 mph | 196 km |
| 2020 | Maysak | Category 1 | 92 mph | 244 km |
| 2019 | Francisco | Category 1 | 81 mph | 174 km |
| 2018 | Trami | Category 1 | 92 mph | 286 km |
| 2018 | Prapiroon | Category 1 | 69 mph | 195 km |
| 2017 | Noru | Category 1 | 69 mph | 262 km |
| 2016 | Chaba | Category 1 | 75 mph | 284 km |
| 2016 | Malakas | Category 1 | 86 mph | 267 km |
| 2015 | Goni | Category 3 | 98 mph | 52 km |
| 2014 | Halong | Category 1 | 81 mph | 248 km |
| 2013 | Danas | Category 1 | 69 mph | 260 km |
| 2012 | Sanba | Category 2 | 86 mph | 286 km |
| 2011 | Ma-on | Category 1 | 86 mph | 263 km |
| 2007 | Usagi | Category 2 | 92 mph | 33 km |
| 2007 | Man-yi | Category 1 | 81 mph | 239 km |
| 2006 | Shanshan | Category 1 | 92 mph | 85 km |
| 2005 | Nabi | Category 2 | 86 mph | 38 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
6 tsunamis recorded within 500 km. Highest wave on record: 10.0 m (33 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1026 | OFF MASUDA, SHIMANE PREFECTURE | Earthquake | 10.0 m | 1,001 | 72 km |
| 1596 | BEPPU BAY, KYUSHU | Eruption + Earthquake | 8.0 m | 708 | 129 km |
| 1872 | SW. HONSHU ISLAND | Earthquake | 3.0 m | 804 | 93 km |
| 1715 | SEIKAIDO | Earthquake | — | — | 129 km |
| 1698 | SEIKAIDO-NANKAIDO | Earthquake | — | — | 129 km |
| 1597 | BEPPU BAY, JAPAN | Eruption + Earthquake | — | 40 | 126 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Abu (39 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Abu | Shield(s) | 641 m (2,103 ft) | -6850 | 39 km |
| Yufu-Tsurumi | Lava dome(s) | 1,584 m (5,197 ft) | 867 | 124 km |
| Kujusan | Stratovolcano(es) | 1,791 m (5,876 ft) | 1996 | 144 km |
| Sanbesan | Stratovolcano | 1,126 m (3,694 ft) | 650 | 155 km |
| Asosan | Caldera | 1,592 m (5,223 ft) | 2020 | 167 km |
| Unzendake | Complex | 1,483 m (4,865 ft) | 1996 | 199 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 3.3 in | Coldest |
| February | 42°F (5°C) | 3.5 in | |
| March | 46°F (8°C) | 5.0 in | |
| April | 55°F (13°C) | 6.8 in | |
| May | 63°F (17°C) | 6.5 in | |
| June | 70°F (21°C) | 10.8 in | |
| July | 78°F (25°C) | 11.1 in | Wettest |
| August | 79°F (26°C) | 5.6 in | Warmest |
| September | 72°F (22°C) | 7.4 in | |
| October | 63°F (17°C) | 3.9 in | |
| November | 54°F (12°C) | 3.3 in | |
| December | 46°F (8°C) | 2.6 in | Driest |
Nagato has a seasonal temperature swing of 38°F / from 41°F in January to 79°F in August. Total annual precipitation is 69.7 inches, with July being the wettest month (11.1") and December the driest (2.6").