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Weather & Climate in Asahi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Asahi enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 36°F in January while summers reach 76°F in July. The area gets 174 sunny days per year. Annual precipitation totals 89.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 62 feet.
Temperature
36°F Jan (2°C)
76°F Jul (24°C)
| Annual Average | 55.9°F |
| 4% above US avg | |
| January Average | 36°F (2°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 174 days/yr |
Geography
| Elevation | 62 ft (19 m) |
| Area | 682.8 sq mi (1,768.4 km²) |
| Population Density | 14/sq mi |
| Coordinates | 35.9726°N, 136.1246°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
388 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.8.
| Jul 16, 2007 | 133 km WNW of Mikuni, Japan | M6.8 | 147 km | 350 km |
| Jan 1, 2024 | 8 km SW of Anamizu, Japan | M6.2 | 149 km | 10 km |
| Apr 11, 1990 | 11 km ENE of Maizuru, Japan | M6.1 | 82 km | 362 km |
| Jun 6, 2000 | Sea of Japan | M5.9 | 112 km | 10 km |
| Aug 7, 1992 | 21 km N of Miyazu, Japan | M5.8 | 92 km | 358 km |
| Aug 15, 1998 | 22 km WSW of Hotaka, Japan | M5.5 | 140 km | 10 km |
| Jun 17, 2018 | near the south coast of western Honshu, Japan | M5.5 | 135 km | 10 km |
| Apr 21, 2000 | 27 km NNE of Maizuru, Japan | M5.5 | 67 km | 347 km |
| May 17, 1990 | 7 km W of Nanao, Japan | M5.4 | 139 km | 267 km |
| Aug 26, 2010 | 25 km ENE of Katsuyama, Japan | M5.4 | 60 km | 278 km |
| Sep 24, 2003 | 5 km WNW of Ayabe, Japan | M5.4 | 111 km | 372 km |
| Oct 5, 2011 | 24 km W of ?machi, Japan | M5.3 | 143 km | 10 km |
| Apr 22, 1998 | 18 km SE of Hikone, Japan | M5.2 | 95 km | 33 km |
| May 19, 2020 | 18 km WSW of Hotaka, Japan | M5.2 | 145 km | 10 km |
| Jan 30, 1996 | 67 km NNE of Miyazu, Japan | M5.2 | 72 km | 361 km |
| Jun 24, 2017 | 31 km ENE of Gero, Japan | M5.2 | 131 km | 10 km |
| Oct 5, 2011 | eastern Honshu, Japan | M5.2 | 127 km | 13 km |
| Mar 16, 1999 | 10 km WNW of Kitahama, Japan | M5.1 | 89 km | 33 km |
| Apr 15, 2007 | 11 km ENE of Ueno-ebisumachi, Japan | M5.1 | 130 km | 16 km |
| May 28, 1994 | 12 km WNW of Nagahama, Japan | M5.1 | 63 km | 49 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
41 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 | 256 km |
| 2019 | Hagibis | Category 2 | 92 mph | 279 km |
| 2018 | Jebi | Category 2 | 98 mph | 71 km |
| 2018 | Trami | Category 1 | 92 mph | 248 km |
| 2018 | Cimaron | Category 1 | 86 mph | 200 km |
| 2018 | Jongdari | Category 1 | 81 mph | 186 km |
| 2017 | Noru | Category 1 | 69 mph | 238 km |
| 2014 | Phanfone | Category 1 | 81 mph | 209 km |
| 2011 | Roke | Category 2 | 92 mph | 193 km |
| 2011 | Ma-on | Category 1 | 86 mph | 298 km |
| 2009 | Melor | Category 1 | 86 mph | 224 km |
| 2008 | Sinlaku | Category 1 | 75 mph | 284 km |
| 2007 | Fitow | Category 1 | 81 mph | 281 km |
| 2005 | Mawar | Category 2 | 81 mph | 285 km |
| 2004 | Ma-on | Category 3 | 92 mph | 267 km |
| 2004 | Songda | Category 1 | 81 mph | 224 km |
| 2004 | Chaba | Category 1 | 69 mph | 138 km |
| 2003 | Etau | Category 2 | 69 mph | 42 km |
| 2001 | Danas | Category 1 | 81 mph | 293 km |
| 1999 | Bart | Category 1 | 81 mph | 235 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
8 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 | 101 km |
| 1909 | ANEGAWA, JAPAN | Earthquake | 1.8 m | 41 | 66 km |
| 1892 | SW. HONSHU ISLAND | Earthquake | — | 1 | 129 km |
| 1799 | SW. HONSHU ISLAND | Earthquake | — | — | 82 km |
| 1726 | KATSUYAMA | Earthquake | — | — | 38 km |
| 1666 | AICHI PREFECTURE | Earthquake | — | — | 124 km |
| 1586 | ISE BAY | Earthquake | — | 8,000 | 124 km |
| 701 | SEA OF JAPAN | Earthquake | — | — | 72 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
7 volcanoes within 200 km. Closest: Hakusan (62 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Hakusan | Stratovolcano | 2,702 m (8,865 ft) | 1659 | 62 km |
| Ontakesan | Complex | 3,067 m (10,062 ft) | 2014 | 122 km |
| Norikuradake | Stratovolcano(es) | 3,026 m (9,928 ft) | -50 | 129 km |
| Yakedake | Stratovolcano(es) | 2,455 m (8,054 ft) | 1995 | 134 km |
| Washiba-Kumonotaira | Shield(s) | 2,924 m (9,593 ft) | Unknown | 141 km |
| Midagahara | Stratovolcano | 2,621 m (8,599 ft) | 1839 | 147 km |
| Yokodake | Stratovolcano(es) | 2,480 m (8,136 ft) | 1200 | 198 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 10.4 in | Coldest, Wettest |
| February | 36°F (2°C) | 7.1 in | |
| March | 42°F (5°C) | 6.0 in | |
| April | 53°F (11°C) | 5.7 in | |
| May | 61°F (16°C) | 5.8 in | |
| June | 68°F (20°C) | 8.2 in | |
| July | 76°F (24°C) | 8.6 in | |
| August | 78°F (26°C) | 5.4 in | Warmest, Driest |
| September | 71°F (21°C) | 8.8 in | |
| October | 60°F (15°C) | 6.1 in | |
| November | 50°F (10°C) | 7.1 in | |
| December | 41°F (5°C) | 10.0 in |
Asahi has a seasonal temperature swing of 42°F / from 36°F in January to 78°F in August. Total annual precipitation is 89.2 inches, with January being the wettest month (10.4") and August the driest (5.4").