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Weather & Climate in Kawachi-Nagano, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Kawachi-Nagano enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 41°F in January while summers reach 81°F in July. The area gets 285 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 65.7 inches (wetter than the 38-inch national average). The area receives 4.5 inches of snow annually. The city sits at an elevation of 646 feet.
Temperature
41°F Jan (5°C)
81°F Jul (27°C)
| Annual Average | 61.2°F |
| 13% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 285 days/yr |
Geography
| Elevation | 646 ft (197 m) |
| Area | 65.6 sq mi (169.9 km²) |
| Population Density | 1,550/sq mi |
| Coordinates | 34.4411°N, 135.5828°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
432 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 | 54 km | 22 km |
| Apr 11, 1990 | 11 km ENE of Maizuru, Japan | M6.1 | 116 km | 362 km |
| Apr 1, 2016 | 54 km SE of Shing?, Japan | M5.9 | 140 km | 14 km |
| Aug 7, 1992 | 21 km N of Miyazu, Japan | M5.8 | 148 km | 358 km |
| Apr 12, 2013 | 6 km WNW of Sumoto, Japan | M5.8 | 70 km | 14 km |
| Jun 1, 1998 | 17 km SW of Owase, Japan | M5.8 | 72 km | 399 km |
| Feb 26, 2025 | 38 km ESE of Shingū, Japan | M5.8 | 118 km | 388 km |
| Aug 20, 1999 | 22 km SE of Kainan, Japan | M5.7 | 49 km | 66 km |
| Nov 18, 2013 | 25 km SE of Toba, Japan | M5.6 | 135 km | 328 km |
| Apr 21, 2000 | 27 km NNE of Maizuru, Japan | M5.5 | 137 km | 347 km |
| Oct 30, 2000 | western Honshu, Japan | M5.5 | 60 km | 35 km |
| Jun 17, 2018 | near the south coast of western Honshu, Japan | M5.5 | 43 km | 10 km |
| Aug 1, 2007 | 42 km ESE of Owase, Japan | M5.5 | 112 km | 371 km |
| Sep 24, 2003 | 5 km WNW of Ayabe, Japan | M5.4 | 104 km | 372 km |
| May 9, 2022 | 7 km NE of Toba, Japan | M5.3 | 121 km | 329 km |
| Jan 6, 2004 | 36 km S of Ise, Japan | M5.3 | 105 km | 33 km |
| Mar 13, 2019 | 22 km ESE of Anan, Japan | M5.2 | 97 km | 37 km |
| Apr 22, 1998 | 18 km SE of Hikone, Japan | M5.2 | 110 km | 33 km |
| May 28, 1994 | 12 km WNW of Nagahama, Japan | M5.1 | 119 km | 49 km |
| Apr 15, 2007 | 11 km ENE of Ueno-ebisumachi, Japan | M5.1 | 73 km | 16 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
51 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2023 | Lan | Category 2 | 81 mph | 83 km |
| 2019 | Hagibis | Category 2 | 92 mph | 255 km |
| 2018 | Jebi | Category 3 | 98 mph | 65 km |
| 2018 | Trami | Category 1 | 92 mph | 72 km |
| 2018 | Cimaron | Category 1 | 92 mph | 83 km |
| 2018 | Jongdari | Category 1 | 81 mph | 139 km |
| 2017 | Lan | Category 2 | 104 mph | 189 km |
| 2017 | Noru | Category 1 | 69 mph | 66 km |
| 2016 | Malakas | Category 1 | 86 mph | 266 km |
| 2015 | Nangka | Category 1 | 81 mph | 199 km |
| 2014 | Phanfone | Category 2 | 92 mph | 119 km |
| 2014 | Halong | Category 1 | 81 mph | 265 km |
| 2012 | Jelawat | Category 1 | 92 mph | 214 km |
| 2011 | Roke | Category 3 | 98 mph | 127 km |
| 2011 | Ma-on | Category 1 | 86 mph | 130 km |
| 2009 | Melor | Category 1 | 86 mph | 106 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 151 km |
| 2007 | Fitow | Category 1 | 81 mph | 289 km |
| 2005 | Mawar | Category 2 | 92 mph | 226 km |
| 2004 | Ma-on | Category 4 | 92 mph | 213 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
20 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 | 136 km |
| 1944 | OFF SOUTHEAST COAST KII PENINSULA | Earthquake | 10.0 m | 1,223 | 148 km |
| 1946 | HONSHU: S COAST | Earthquake | 6.6 m | 1,362 | 150 km |
| 1711 | SEIONAIKAI, JAPAN | Earthquake | 2.0 m | 1,000 | 146 km |
| 1520 | KII, KUMANANONADA | Earthquake | 2.0 m | — | 115 km |
| 1510 | OSAKA BAY | Earthquake | 2.0 m | — | 24 km |
| 1408 | KUMANONADA | Earthquake | 2.0 m | — | 141 km |
| 1403 | KUMANONADA | Earthquake | 2.0 m | — | 118 km |
| 922 | KUMANONADA | Earthquake | 2.0 m | — | 125 km |
| 1909 | ANEGAWA, JAPAN | Earthquake | 1.8 m | 41 | 125 km |
| 1808 | E. AWA, TOKUSHIMA PREFECTURE | Earthquake | 1.5 m | — | 94 km |
| 1948 | TOKAIDO | Earthquake | 0.6 m | — | 149 km |
| 1995 | KOBE, JAPAN | Earthquake | 0.3 m | 6,434 | 50 km |
| 1791 | OASAKA BAY | Earthquake | — | — | 18 km |
| 1708 | TOKAIDO | Earthquake | — | — | 139 km |
| 1666 | AICHI PREFECTURE | Earthquake | — | — | 127 km |
| 1586 | ISE BAY | Earthquake | — | 8,000 | 127 km |
| 1498 | NANKAIDO | Earthquake | — | — | 110 km |
| 1360 | KUMANONADA | Earthquake | — | — | 129 km |
| 1331 | OFF TANABE, WAKAYAMA PREFECTURE | Earthquake | — | — | 90 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 1.9 in | |
| February | 39°F (4°C) | 2.4 in | Coldest |
| March | 44°F (7°C) | 4.3 in | |
| April | 55°F (13°C) | 6.0 in | |
| May | 63°F (17°C) | 6.4 in | |
| June | 70°F (21°C) | 9.7 in | Wettest |
| July | 81°F (27°C) | 7.4 in | Warmest |
| August | 79°F (26°C) | 5.6 in | |
| September | 72°F (22°C) | 8.5 in | |
| October | 61°F (16°C) | 5.2 in | |
| November | 52°F (11°C) | 3.2 in | |
| December | 43°F (6°C) | 1.6 in | Driest |
Kawachi-Nagano has a seasonal temperature swing of 42°F / from 39°F in February to 81°F in July. Total annual precipitation is 62.2 inches, with June being the wettest month (9.7") and December the driest (1.6").