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Weather & Climate in Ajiki, Japan

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Ajiki enjoys a temperate climate with an average annual temperature of 62°F (16°C). Winters average 39°F in January while summers reach 82°F in July. The area gets 294 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 51.7 inches (wetter than the 38-inch national average). The area receives 1.3 inches of snow annually. The city sits at an elevation of 13 feet.

Temperature

39°F Jan (4°C) 82°F Jul (28°C)
Annual Average61.5°F
14% above US avg
January Average39°F (4°C)
July Average82°F (28°C)
Sunny Days294 days/yr

Geography

Elevation13 ft (4 m)
Area22.6 sq mi (58.6 km²)
Population Density889/sq mi
Coordinates35.8333°N, 140.2333°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 51.7"
36% above US avg
Snowfall 1.3"
Wettest Month (Sep) 7.40"
Driest Month (Jan) 1.89"

Air Quality

Earthquake History

3,438 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.9.

Mar 11, 2011 47 km E of ?arai, Japan M7.9 93 km 43 km
May 7, 2008 78 km NE of Hasaki, Japan M6.9 122 km 27 km
Apr 11, 2011 17 km SSW of Ishikawa, Japan M6.6 131 km 11 km
Mar 11, 2011 81 km NE of Hasaki, Japan M6.5 125 km 7 km
Jul 30, 2011 13 km SSE of Iwaki, Japan M6.3 139 km 38 km
Jun 1, 1990 near the east coast of Honshu, Japan M6.3 36 km 67 km
Mar 11, 2011 92 km ENE of Hasaki, Japan M6.3 143 km 21 km
Mar 11, 2011 70 km ESE of Kitaibaraki, Japan M6.2 139 km 40 km
Sep 11, 1996 23 km SSE of Hasaki, Japan M6.2 72 km 55 km
Apr 21, 2011 6 km WNW of T?gane, Japan M6.2 29 km 43 km
Apr 11, 2011 23 km SE of T?gane, Japan M6.2 56 km 15 km
May 7, 2008 80 km NE of Hasaki, Japan M6.2 124 km 19 km
Jun 3, 2000 6 km SE of Narut?, Japan M6.2 38 km 62 km
May 26, 2023 12 km SE of Narutō, Japan M6.1 43 km 42 km
Mar 13, 2011 72 km E of Hasaki, Japan M6.1 127 km 8 km
Jun 5, 2012 75 km ESE of ?hara, Japan M6.1 128 km 15 km
Aug 5, 1990 43 km E of ?arai, Japan M6.1 92 km 27 km
May 7, 2008 95 km ENE of Hasaki, Japan M6.1 142 km 23 km
Sep 15, 2011 68 km E of ?arai, Japan M6.1 110 km 28 km
Aug 6, 1991 19 km E of Hasaki, Japan M6.0 74 km 29 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.

Hurricane History

39 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.

Year Name Category Max Wind Closest
2025 Nakri Category 1 - 284 km
2024 Ampil Category 3 98 mph 185 km
2024 Jebi Category 1 75 mph 212 km
2021 Mindulle Category 1 86 mph 281 km
2019 Faxai Category 3 98 mph 7 km
2019 Hagibis Category 2 92 mph 80 km
2018 Jongdari Category 2 86 mph 218 km
2018 Shanshan Category 1 81 mph 139 km
2016 Mindulle Category 1 75 mph 183 km
2016 Lionrock Category 1 81 mph 213 km
2014 Phanfone Category 1 75 mph 196 km
2011 Roke Category 1 92 mph 93 km
2009 Krovanh Category 1 69 mph 261 km
2007 Fitow Category 1 81 mph 97 km
2005 Saola Category 2 86 mph 249 km
2005 Mawar Category 2 81 mph 16 km
2004 Ma-on Category 3 92 mph 47 km
2003 Choi-wan Category 3 81 mph 268 km
2002 Higos Category 2 86 mph 31 km
2002 Phanfone Category 1 75 mph 290 km
Source: NOAA IBTrACS (Category 1+, 1980-2026).

Tsunami History

20 tsunamis recorded within 500 km. Highest wave on record: 13.0 m (43 ft).

Year Location Cause Max Wave Deaths Distance
1923 SAGAMI BAY Earthquake 13.0 m 105,385 105 km
1703 OFF SW BOSO PENINSULA Earthquake 11.7 m 5,233 132 km
1677 OFF SE. BOSO PENINSULA Earthquake 8.0 m 500 148 km
1495 KAMAKURA, SAGAMI BAY, TOKAIDO Earthquake 5.0 m 200 105 km
1732 KUJUKURI BEACH, JAPAN Earthquake 2.0 m - 87 km
1670 BOSO, JAPAN Earthquake 2.0 m - 79 km
1433 OFF IZU-OSHIMA Earthquake 2.0 m - 123 km
1938 JAPAN TRENCH Earthquake 0.8 m - 142 km
1980 HONSHU ISLAND Earthquake 0.6 m - 149 km
1982 IBARAKI, JAPAN Earthquake 0.4 m - 138 km
1923 KASHIMA, JAPAN Earthquake 0.4 m - 150 km
1978 TOKAIDO Earthquake 0.4 m 25 144 km
1923 RYUKYU ISLANDS Earthquake 0.3 m - 104 km
1896 KASHIMA, JAPAN Earthquake 0.3 m - 101 km
1935 JAPAN Earthquake 0.2 m - 135 km
1855 TOKAIDO Earthquake - 6,757 44 km
1782 ODAWARA, SAGAMI BAY Eruption + Earthquake - - 95 km
1642 BOSO, JAPAN Earthquake - - 78 km
1633 SAGAMI BAY Earthquake - 150 117 km
1602 BOSO, JAPAN Eruption + Earthquake - - 85 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

15 volcanoes within 200 km. Closest: Nantaisan (123 km).

Name Type Elevation Last Eruption Distance
Nantaisan Stratovolcano 2,486 m (8,156 ft) -9540 123 km
Akagisan Stratovolcano 1,828 m (5,997 ft) Unknown 124 km
Omanago Group Lava dome(s) 2,341 m (7,680 ft) -3050 125 km
Takaharayama Stratovolcano 1,795 m (5,889 ft) -4570 125 km
Hakoneyama Complex 1,438 m (4,718 ft) 2015 128 km
Nikko-Shiranesan Shield 2,578 m (8,458 ft) 1952 132 km
Harunasan Stratovolcano 1,449 m (4,754 ft) 550 143 km
Izu-Oshima Stratovolcano 758 m (2,487 ft) 1990 145 km
Nasudake Stratovolcano(es) 1,915 m (6,283 ft) 1963 146 km
Fujisan Stratovolcano 3,776 m (12,388 ft) 1708 146 km
Izu-Tobu Pyroclastic cone(s) 1,406 m (4,613 ft) 1989 146 km
Hiuchigatake Stratovolcano 2,356 m (7,730 ft) 1544 151 km
Asamayama Complex 2,568 m (8,425 ft) 2019 166 km
Toshima Stratovolcano 508 m (1,667 ft) -4550 170 km
Yokodake Stratovolcano(es) 2,480 m (8,136 ft) 1200 175 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 39°F (4°C) 1.9 in Coldest, Driest
February 41°F (5°C) 2.7 in
March 46°F (8°C) 4.0 in
April 56°F (13°C) 4.7 in
May 64°F (18°C) 4.5 in
June 69°F (21°C) 6.2 in
July 82°F (28°C) 4.8 in Warmest
August 79°F (26°C) 5.0 in
September 73°F (23°C) 7.4 in Wettest
October 63°F (17°C) 7.0 in
November 53°F (12°C) 3.7 in
December 44°F (7°C) 1.9 in

Ajiki has a seasonal temperature swing of 43°F / from 39°F in January to 82°F in July. Total annual precipitation is 53.7 inches, with September being the wettest month (7.4") and January the driest (1.9").

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