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Weather & Climate in Shimo-ichigi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Shimo-ichigi enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 44°F in January while summers reach 78°F in July. The area gets 183 sunny days per year. Annual precipitation totals 84.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 52 feet.
Temperature
44°F Jan (7°C)
78°F Jul (26°C)
| Annual Average | 61.4°F |
| 14% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 183 days/yr |
Geography
| Elevation | 52 ft (16 m) |
| Area | 167.0 sq mi (432.5 km²) |
| Population Density | 48/sq mi |
| Coordinates | 33.8305°N, 136.0515°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
634 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.4.
| Sep 5, 2004 | 118 km ESE of Shing?, Japan | M7.4 | 119 km | 10 km |
| Sep 5, 2004 | 94 km SE of Shing?, Japan | M7.2 | 100 km | 14 km |
| Jan 16, 1995 | 8 km S of Akashi, Japan | M6.9 | 127 km | 22 km |
| Sep 6, 2004 | 129 km ESE of Shing?, Japan | M6.6 | 129 km | 10 km |
| Sep 5, 2004 | 119 km ESE of Shing?, Japan | M6.5 | 120 km | 15 km |
| Jul 27, 2019 | 138 km ESE of Shing?, Japan | M6.3 | 139 km | 367 km |
| Sep 8, 2004 | 130 km ESE of Shing?, Japan | M6.1 | 131 km | 21 km |
| Jul 7, 1995 | 62 km SSE of Toba, Japan | M6.0 | 101 km | 333 km |
| Apr 1, 2016 | 54 km SE of Shing?, Japan | M5.9 | 59 km | 14 km |
| May 23, 1997 | 38 km SSE of Tahara, Japan | M5.8 | 145 km | 11 km |
| Feb 26, 2025 | 38 km ESE of Shingū, Japan | M5.8 | 38 km | 388 km |
| Jun 1, 1998 | 17 km SW of Owase, Japan | M5.8 | 13 km | 399 km |
| Apr 12, 2013 | 6 km WNW of Sumoto, Japan | M5.8 | 128 km | 14 km |
| Sep 5, 2004 | 93 km SE of Shing?, Japan | M5.7 | 95 km | 10 km |
| Aug 20, 1999 | 22 km SE of Kainan, Japan | M5.7 | 63 km | 66 km |
| Sep 7, 2004 | 116 km ESE of Shing?, Japan | M5.6 | 117 km | 10 km |
| Feb 22, 2005 | 124 km ESE of Shing?, Japan | M5.6 | 125 km | 370 km |
| Sep 10, 2004 | 88 km SSE of Shing?, Japan | M5.6 | 95 km | 10 km |
| Nov 18, 2013 | 25 km SE of Toba, Japan | M5.6 | 108 km | 328 km |
| Oct 18, 1996 | 102 km SSE of Toba, Japan | M5.6 | 126 km | 338 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
55 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Nakri | Category 1 | — | 241 km |
| 2023 | Lan | Category 2 | 81 mph | 36 km |
| 2019 | Faxai | Category 4 | 98 mph | 266 km |
| 2019 | Hagibis | Category 3 | 98 mph | 191 km |
| 2018 | Jebi | Category 3 | 98 mph | 118 km |
| 2018 | Trami | Category 1 | 92 mph | 51 km |
| 2018 | Cimaron | Category 1 | 92 mph | 135 km |
| 2018 | Jongdari | Category 1 | 81 mph | 122 km |
| 2017 | Lan | Category 2 | 104 mph | 117 km |
| 2017 | Noru | Category 1 | 69 mph | 90 km |
| 2016 | Malakas | Category 1 | 81 mph | 263 km |
| 2015 | Nangka | Category 1 | 86 mph | 187 km |
| 2014 | Phanfone | Category 2 | 92 mph | 60 km |
| 2014 | Halong | Category 1 | 81 mph | 272 km |
| 2013 | Wipha | Category 1 | 81 mph | 280 km |
| 2012 | Jelawat | Category 1 | 92 mph | 174 km |
| 2011 | Roke | Category 4 | 98 mph | 70 km |
| 2011 | Ma-on | Category 1 | 86 mph | 137 km |
| 2010 | Chaba | Category 1 | 75 mph | 236 km |
| 2009 | Melor | Category 1 | 92 mph | 54 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
20 tsunamis recorded within 500 km. Highest wave on record: 28.0 m (92 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1854 | NANKAIDO | Earthquake | 28.0 m | 3,000 | 127 km |
| 1707 | NANKAIDO | Earthquake | 25.7 m | 5,000 | 136 km |
| 1944 | OFF SOUTHEAST COAST KII PENINSULA | Earthquake | 10.0 m | 1,223 | 99 km |
| 1605 | NANKAIDO | Earthquake | 10.0 m | 5,000 | 141 km |
| 1096 | ENSHUNADA | Earthquake | 7.0 m | — | 135 km |
| 1946 | HONSHU: S COAST | Earthquake | 6.6 m | 1,362 | 80 km |
| 1520 | KII, KUMANANONADA | Earthquake | 2.0 m | — | 34 km |
| 1510 | OSAKA BAY | Earthquake | 2.0 m | — | 104 km |
| 1408 | KUMANONADA | Earthquake | 2.0 m | — | 79 km |
| 1403 | KUMANONADA | Earthquake | 2.0 m | — | 44 km |
| 922 | KUMANONADA | Earthquake | 2.0 m | — | 60 km |
| 1808 | E. AWA, TOKUSHIMA PREFECTURE | Earthquake | 1.5 m | — | 116 km |
| 1945 | TOKAIDO | Earthquake | 1.0 m | 2,306 | 143 km |
| 2004 | SOUTH COAST HONSHU ISLAND | Earthquake | 0.9 m | — | 119 km |
| 2004 | SOUTH COAST HONSHU ISLAND | Earthquake | 0.6 m | — | 100 km |
| 1948 | TOKAIDO | Earthquake | 0.6 m | — | 91 km |
| 1995 | KOBE, JAPAN | Earthquake | 0.3 m | 6,434 | 124 km |
| 1791 | OASAKA BAY | Earthquake | — | — | 96 km |
| 1708 | TOKAIDO | Earthquake | — | — | 90 km |
| 1666 | AICHI PREFECTURE | Earthquake | — | — | 147 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 2.7 in | Coldest |
| February | 45°F (7°C) | 3.4 in | |
| March | 50°F (10°C) | 5.6 in | |
| April | 59°F (15°C) | 7.8 in | |
| May | 65°F (19°C) | 8.2 in | |
| June | 71°F (22°C) | 12.1 in | Wettest |
| July | 78°F (26°C) | 9.0 in | |
| August | 80°F (27°C) | 8.4 in | Warmest |
| September | 75°F (24°C) | 11.5 in | |
| October | 66°F (19°C) | 7.9 in | |
| November | 57°F (14°C) | 5.4 in | |
| December | 48°F (9°C) | 2.4 in | Driest |
Shimo-ichigi has a seasonal temperature swing of 36°F / from 44°F in January to 80°F in August. Total annual precipitation is 84.5 inches, with June being the wettest month (12.1") and December the driest (2.4").