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Weather & Climate in Nishiwaki, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Nishiwaki enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 39°F in January while summers reach 79°F in July. The area gets 237 sunny days per year, above the national average. Annual precipitation totals 54.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 187 feet.
Temperature
39°F Jan (4°C)
79°F Jul (26°C)
| Annual Average | 58.4°F |
| 8% above US avg | |
| January Average | 39°F (4°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 237 days/yr |
Geography
| Elevation | 187 ft (57 m) |
| Area | 51.2 sq mi (132.5 km²) |
| Population Density | 756/sq mi |
| Coordinates | 34.9842°N, 134.9741°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
283 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.9.
| Jan 16, 1995 | 8 km S of Akashi, Japan | M6.9 | 45 km | 22 km |
| Apr 11, 1990 | 11 km ENE of Maizuru, Japan | M6.1 | 70 km | 362 km |
| Apr 12, 2013 | 6 km WNW of Sumoto, Japan | M5.8 | 70 km | 14 km |
| Aug 7, 1992 | 21 km N of Miyazu, Japan | M5.8 | 84 km | 358 km |
| Aug 20, 1999 | 22 km SE of Kainan, Japan | M5.7 | 114 km | 66 km |
| Jun 17, 2018 | near the south coast of western Honshu, Japan | M5.5 | 63 km | 10 km |
| Apr 21, 2000 | 27 km NNE of Maizuru, Japan | M5.5 | 89 km | 347 km |
| Oct 30, 2000 | western Honshu, Japan | M5.5 | 137 km | 35 km |
| Sep 24, 2003 | 5 km WNW of Ayabe, Japan | M5.4 | 42 km | 372 km |
| Sep 16, 2002 | 24 km SW of Kurayoshi, Japan | M5.3 | 124 km | 10 km |
| Jan 11, 2001 | 15 km E of Tottori, Japan | M5.3 | 76 km | 33 km |
| Jan 30, 1996 | 67 km NNE of Miyazu, Japan | M5.2 | 132 km | 361 km |
| Apr 22, 1998 | 18 km SE of Hikone, Japan | M5.2 | 133 km | 33 km |
| Mar 13, 2019 | 22 km ESE of Anan, Japan | M5.2 | 131 km | 37 km |
| Apr 15, 2007 | 11 km ENE of Ueno-ebisumachi, Japan | M5.1 | 117 km | 16 km |
| May 28, 1994 | 12 km WNW of Nagahama, Japan | M5.1 | 115 km | 49 km |
| Mar 16, 1999 | 10 km WNW of Kitahama, Japan | M5.1 | 81 km | 33 km |
| Jan 16, 1995 | 20 km SW of Akashi, Japan | M5.0 | 50 km | 10 km |
| Apr 16, 1994 | 16 km ENE of Maizuru, Japan | M5.0 | 75 km | 358 km |
| Jul 5, 2011 | 12 km NNW of Gob?, Japan | M5.0 | 112 km | 16 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 4.
| Year | Name | Category | Max Wind | Closest |
| 2023 | Lan | Category 2 | 75 mph | 158 km |
| 2018 | Jebi | Category 3 | 98 mph | 76 km |
| 2018 | Trami | Category 1 | 92 mph | 140 km |
| 2018 | Cimaron | Category 1 | 86 mph | 50 km |
| 2018 | Jongdari | Category 1 | 75 mph | 202 km |
| 2017 | Lan | Category 1 | 98 mph | 270 km |
| 2017 | Noru | Category 1 | 69 mph | 110 km |
| 2016 | Malakas | Category 1 | 81 mph | 278 km |
| 2015 | Nangka | Category 1 | 81 mph | 229 km |
| 2014 | Phanfone | Category 1 | 86 mph | 199 km |
| 2014 | Halong | Category 1 | 81 mph | 269 km |
| 2012 | Jelawat | Category 1 | 92 mph | 265 km |
| 2011 | Roke | Category 3 | 98 mph | 206 km |
| 2011 | Ma-on | Category 1 | 86 mph | 158 km |
| 2009 | Melor | Category 1 | 86 mph | 185 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 223 km |
| 2007 | Usagi | Category 2 | 92 mph | 280 km |
| 2004 | Ma-on | Category 4 | 92 mph | 295 km |
| 2004 | Songda | Category 2 | 86 mph | 234 km |
| 2004 | Chaba | Category 1 | 81 mph | 129 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
10 tsunamis recorded within 500 km. Highest wave on record: 11.3 m (37 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1927 | SW. HONSHU ISLAND | Eruption + Earthquake | 11.3 m | 3,022 | 69 km |
| 1711 | SEIONAIKAI, JAPAN | Earthquake | 2.0 m | 1,000 | 117 km |
| 1510 | OSAKA BAY | Earthquake | 2.0 m | — | 58 km |
| 1909 | ANEGAWA, JAPAN | Earthquake | 1.8 m | 41 | 129 km |
| 1808 | E. AWA, TOKUSHIMA PREFECTURE | Earthquake | 1.5 m | — | 122 km |
| 1995 | KOBE, JAPAN | Earthquake | 0.3 m | 6,434 | 45 km |
| 1791 | OASAKA BAY | Earthquake | — | — | 66 km |
| 1331 | OFF TANABE, WAKAYAMA PREFECTURE | Earthquake | — | — | 144 km |
| 745 | OSAKA BAY, JAPAN | Earthquake | — | — | 52 km |
| 701 | SEA OF JAPAN | Earthquake | — | — | 89 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Oki-Dogo (199 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Oki-Dogo | Shield | 151 m (495 ft) | Unknown | 199 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 2.3 in | Coldest |
| February | 39°F (4°C) | 2.8 in | |
| March | 45°F (7°C) | 3.9 in | |
| April | 55°F (13°C) | 5.1 in | |
| May | 64°F (18°C) | 5.5 in | |
| June | 71°F (22°C) | 8.0 in | Wettest |
| July | 79°F (26°C) | 6.4 in | |
| August | 81°F (27°C) | 4.0 in | Warmest |
| September | 73°F (23°C) | 7.7 in | |
| October | 62°F (17°C) | 4.4 in | |
| November | 52°F (11°C) | 3.1 in | |
| December | 43°F (6°C) | 1.9 in | Driest |
Nishiwaki has a seasonal temperature swing of 42°F / from 39°F in January to 81°F in August. Total annual precipitation is 54.8 inches, with June being the wettest month (8.0") and December the driest (1.9").