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Weather & Climate in Yamatokōriyama, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yamatokōriyama enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 40°F in January while summers reach 80°F in July. The area gets 230 sunny days per year, above the national average. Annual precipitation totals 58.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 138 feet.
Temperature
40°F Jan (5°C)
80°F Jul (26°C)
| Annual Average | 59.9°F |
| 11% above US avg | |
| January Average | 40°F (5°C) |
| July Average | 80°F (26°C) |
| Sunny Days | 230 days/yr |
Geography
| Elevation | 138 ft (42 m) |
| Area | 18.7 sq mi (48.4 km²) |
| Population Density | 4,459/sq mi |
| Coordinates | 34.6066°N, 135.7703°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
476 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 | 69 km | 22 km |
| Apr 11, 1990 | 11 km ENE of Maizuru, Japan | M6.1 | 101 km | 362 km |
| Jul 7, 1995 | 62 km SSE of Toba, Japan | M6.0 | 143 km | 333 km |
| Apr 1, 2016 | 54 km SE of Shing?, Japan | M5.9 | 148 km | 14 km |
| Aug 7, 1992 | 21 km N of Miyazu, Japan | M5.8 | 137 km | 358 km |
| Jun 1, 1998 | 17 km SW of Owase, Japan | M5.8 | 79 km | 399 km |
| Apr 12, 2013 | 6 km WNW of Sumoto, Japan | M5.8 | 90 km | 14 km |
| Feb 26, 2025 | 38 km ESE of Shingū, Japan | M5.8 | 124 km | 388 km |
| Aug 20, 1999 | 22 km SE of Kainan, Japan | M5.7 | 73 km | 66 km |
| Nov 18, 2013 | 25 km SE of Toba, Japan | M5.6 | 121 km | 328 km |
| Aug 1, 2007 | 42 km ESE of Owase, Japan | M5.5 | 110 km | 371 km |
| Apr 21, 2000 | 27 km NNE of Maizuru, Japan | M5.5 | 121 km | 347 km |
| Jun 17, 2018 | near the south coast of western Honshu, Japan | M5.5 | 27 km | 10 km |
| Jan 18, 2003 | 67 km SSE of Toba, Japan | M5.5 | 149 km | 33 km |
| Oct 30, 2000 | western Honshu, Japan | M5.5 | 53 km | 35 km |
| Sep 24, 2003 | 5 km WNW of Ayabe, Japan | M5.4 | 95 km | 372 km |
| May 9, 2022 | 7 km NE of Toba, Japan | M5.3 | 103 km | 329 km |
| Jan 6, 2004 | 36 km S of Ise, Japan | M5.3 | 97 km | 33 km |
| Mar 13, 2019 | 22 km ESE of Anan, Japan | M5.2 | 122 km | 37 km |
| Apr 22, 1998 | 18 km SE of Hikone, Japan | M5.2 | 85 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
48 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 | 101 km |
| 2019 | Hagibis | Category 2 | 92 mph | 245 km |
| 2018 | Jebi | Category 3 | 98 mph | 87 km |
| 2018 | Trami | Category 1 | 92 mph | 93 km |
| 2018 | Cimaron | Category 1 | 86 mph | 98 km |
| 2018 | Jongdari | Category 1 | 81 mph | 122 km |
| 2017 | Lan | Category 2 | 104 mph | 188 km |
| 2017 | Noru | Category 1 | 69 mph | 91 km |
| 2016 | Malakas | Category 1 | 81 mph | 291 km |
| 2015 | Nangka | Category 1 | 81 mph | 224 km |
| 2014 | Phanfone | Category 2 | 92 mph | 116 km |
| 2014 | Halong | Category 1 | 81 mph | 290 km |
| 2012 | Jelawat | Category 1 | 92 mph | 237 km |
| 2011 | Roke | Category 3 | 98 mph | 123 km |
| 2011 | Ma-on | Category 1 | 86 mph | 155 km |
| 2009 | Melor | Category 1 | 86 mph | 102 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 161 km |
| 2007 | Fitow | Category 1 | 81 mph | 275 km |
| 2005 | Mawar | Category 2 | 92 mph | 223 km |
| 2004 | Ma-on | Category 4 | 92 mph | 217 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 | 126 km |
| 1944 | OFF SOUTHEAST COAST KII PENINSULA | Earthquake | 10.0 m | 1,223 | 140 km |
| 1520 | KII, KUMANANONADA | Earthquake | 2.0 m | — | 122 km |
| 1510 | OSAKA BAY | Earthquake | 2.0 m | — | 34 km |
| 1408 | KUMANONADA | Earthquake | 2.0 m | — | 137 km |
| 1403 | KUMANONADA | Earthquake | 2.0 m | — | 121 km |
| 922 | KUMANONADA | Earthquake | 2.0 m | — | 124 km |
| 1909 | ANEGAWA, JAPAN | Earthquake | 1.8 m | 41 | 101 km |
| 1808 | E. AWA, TOKUSHIMA PREFECTURE | Earthquake | 1.5 m | — | 119 km |
| 1945 | TOKAIDO | Earthquake | 1.0 m | 2,306 | 131 km |
| 1995 | KOBE, JAPAN | Earthquake | 0.3 m | 6,434 | 64 km |
| 1791 | OASAKA BAY | Earthquake | — | — | 36 km |
| 1708 | TOKAIDO | Earthquake | — | — | 132 km |
| 1666 | AICHI PREFECTURE | Earthquake | — | — | 104 km |
| 1586 | ISE BAY | Earthquake | — | 8,000 | 104 km |
| 1498 | NANKAIDO | Earthquake | — | — | 134 km |
| 1360 | KUMANONADA | Earthquake | — | — | 140 km |
| 1331 | OFF TANABE, WAKAYAMA PREFECTURE | Earthquake | — | — | 114 km |
| 745 | OSAKA BAY, JAPAN | Earthquake | — | — | 43 km |
| 704 | KUMANONADA | Earthquake | — | — | 124 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Hakusan (195 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hakusan | Stratovolcano | 2,702 m (8,865 ft) | 1659 | 195 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 1.8 in | Coldest |
| February | 41°F (5°C) | 2.4 in | |
| March | 47°F (8°C) | 4.1 in | |
| April | 57°F (14°C) | 5.6 in | |
| May | 65°F (18°C) | 5.9 in | |
| June | 72°F (22°C) | 9.1 in | Wettest |
| July | 80°F (26°C) | 7.3 in | |
| August | 81°F (27°C) | 5.2 in | Warmest |
| September | 74°F (23°C) | 7.9 in | |
| October | 64°F (18°C) | 5.0 in | |
| November | 54°F (12°C) | 3.0 in | |
| December | 45°F (7°C) | 1.5 in | Driest |
Yamatokōriyama has a seasonal temperature swing of 41°F / from 40°F in January to 81°F in August. Total annual precipitation is 58.5 inches, with June being the wettest month (9.1") and December the driest (1.5").