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Weather & Climate in Miyoshi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Miyoshi enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 37°F in January while summers reach 77°F in July. The area gets 220 sunny days per year. Annual precipitation totals 63.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 505 feet.
Temperature
37°F Jan (3°C)
77°F Jul (25°C)
| Annual Average | 57.3°F |
| 6% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 220 days/yr |
Geography
| Elevation | 505 ft (154 m) |
| Area | 300.4 sq mi (778.1 km²) |
| Population Density | 178/sq mi |
| Coordinates | 34.8000°N, 132.8500°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
80 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 | 85 km | 50 km |
| Oct 6, 2000 | 8 km ESE of Matsue, Japan | M6.7 | 77 km | 10 km |
| Jun 25, 1997 | 17 km E of Hagi, Japan | M5.9 | 123 km | 10 km |
| Apr 8, 2018 | 8 km NNE of ?dach?-?da, Japan | M5.7 | 58 km | 10 km |
| Aug 28, 1991 | 9 km SSW of Yasugich?, Japan | M5.5 | 68 km | 13 km |
| Oct 8, 2000 | 32 km N of Sh?bara, Japan | M5.4 | 42 km | 10 km |
| Sep 16, 2002 | 24 km SW of Kurayoshi, Japan | M5.3 | 89 km | 10 km |
| Sep 3, 1997 | 21 km S of Yasugich?, Japan | M5.3 | 58 km | 10 km |
| Oct 8, 2000 | 8 km SSW of Yonago, Japan | M5.2 | 75 km | 10 km |
| Mar 25, 2001 | 22 km WNW of H?j?, Japan | M5.2 | 92 km | 43 km |
| Apr 26, 2007 | 15 km ESE of Niihama, Japan | M5.1 | 114 km | 50 km |
| Jun 3, 2011 | 9 km ENE of G?tsuch?, Japan | M5.0 | 54 km | 10 km |
| Feb 26, 2024 | 18 km N of Yawatahama, Japan | M4.9 | 137 km | 42 km |
| Sep 28, 1990 | 24 km NNW of Kariya, Japan | M4.9 | 129 km | 26 km |
| Jun 18, 2021 | 1 km ENE of ?zu, Japan | M4.9 | 146 km | 42 km |
| Oct 4, 2011 | 14 km SW of Wakimachi, Japan | M4.8 | 143 km | 43 km |
| May 26, 2005 | 6 km SSW of Kan’onjich?, Japan | M4.8 | 108 km | 38 km |
| Apr 8, 2018 | 6 km S of ?dach?-?da, Japan | M4.7 | 49 km | 9 km |
| Oct 6, 2000 | 9 km S of Yonago, Japan | M4.7 | 75 km | 10 km |
| Aug 26, 2023 | 9 km SW of Hikari, Japan | M4.7 | 134 km | 81 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
46 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2023 | Lan | Category 1 | 69 mph | 289 km |
| 2022 | Nanmadol | Category 1 | 81 mph | 246 km |
| 2022 | Hinnamnor | Category 1 | 75 mph | 277 km |
| 2019 | Francisco | Category 1 | 81 mph | 296 km |
| 2018 | Jebi | Category 3 | 98 mph | 196 km |
| 2018 | Trami | Category 1 | 92 mph | 228 km |
| 2018 | Cimaron | Category 1 | 86 mph | 171 km |
| 2017 | Noru | Category 1 | 69 mph | 202 km |
| 2016 | Malakas | Category 1 | 86 mph | 230 km |
| 2015 | Goni | Category 3 | 98 mph | 174 km |
| 2015 | Nangka | Category 1 | 81 mph | 241 km |
| 2014 | Halong | Category 1 | 81 mph | 204 km |
| 2011 | Ma-on | Category 1 | 86 mph | 197 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 281 km |
| 2007 | Usagi | Category 2 | 92 mph | 116 km |
| 2007 | Man-yi | Category 1 | 81 mph | 234 km |
| 2006 | Shanshan | Category 1 | 92 mph | 242 km |
| 2005 | Nabi | Category 2 | 86 mph | 145 km |
| 2004 | Songda | Category 2 | 86 mph | 81 km |
| 2004 | Chaba | Category 2 | 92 mph | 46 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
3 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 | 96 km |
| 1872 | SW. HONSHU ISLAND | Earthquake | 3.0 m | 804 | 78 km |
| 1711 | SEIONAIKAI, JAPAN | Earthquake | 2.0 m | 1,000 | 119 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Sanbesan (43 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Sanbesan | Stratovolcano | 1,126 m (3,694 ft) | 650 | 43 km |
| Abu | Shield(s) | 641 m (2,103 ft) | -6850 | 119 km |
| Oki-Dogo | Shield | 151 m (495 ft) | Unknown | 159 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 3.1 in | Coldest |
| February | 38°F (3°C) | 3.2 in | |
| March | 44°F (7°C) | 4.0 in | |
| April | 54°F (12°C) | 5.3 in | |
| May | 63°F (17°C) | 5.4 in | |
| June | 70°F (21°C) | 9.7 in | |
| July | 77°F (25°C) | 9.7 in | Wettest |
| August | 79°F (26°C) | 5.6 in | Warmest |
| September | 72°F (22°C) | 7.9 in | |
| October | 61°F (16°C) | 4.5 in | |
| November | 51°F (10°C) | 3.0 in | |
| December | 42°F (5°C) | 2.6 in | Driest |
Miyoshi has a seasonal temperature swing of 42°F / from 37°F in January to 79°F in August. Total annual precipitation is 63.9 inches, with July being the wettest month (9.7") and December the driest (2.6").