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Arai, Japan
Full City Profile
4.1
/5.0
A
Great
27,481
Population
108/sq mi density
574 ft
Elevation
175 meters
55°F
Avg Temperature
13°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.2 / 5.0
$28,700 median income, 2.3% unemployment
A+
Affordability
5.0 / 5.0
$74,000 home value, $370/mo rent
Arai experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 34°F in January while summers reach 75°F in July. The area gets 171 sunny days per year. Annual precipitation totals 90.8 inches. The area receives 20.6 inches of snow annually.
Temperature
34°F Jan (1°C)
75°F Jul (24°C)
| Annual Average | 54.9°F |
| 2% above US avg | |
| January Average | 34°F (1°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 171 days/yr |
Geography
| Elevation | 574 ft (175 m) |
| Area | 255.0 sq mi (660.5 km²) |
| Population Density | 108/sq mi |
| Coordinates | 37.0006°N, 138.2259°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Tsunami History
14 tsunamis recorded within 500 km. Highest wave on record: 11.3 m (37 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2024 | HONSHU: W COAST | Eruption + Earthquake | 11.3 m | 549 | 100 km |
| 1993 | HONSHU ISLAND | Earthquake | 0.5 m | — | 112 km |
| 1987 | HONSHU ISLAND | Earthquake | 0.2 m | — | 59 km |
| 2023 | NOTO PENINSULA, JAPAN | Earthquake | 0.1 m | 1 | 101 km |
| 2007 | HONSHU: W COAST | Earthquake | 0.1 m | 1 | 150 km |
| 2007 | HONSHU: W COAST | Earthquake | — | 15 | 67 km |
| 1892 | SW. HONSHU ISLAND | Earthquake | — | 1 | 127 km |
| 1802 | NW. HONSHU ISLAND | Earthquake | — | 19 | 78 km |
| 1762 | NW. HONSHU ISLAND | Earthquake | — | — | 129 km |
| 1751 | NW. HONSHU ISLAND | Eruption + Earthquake | — | 2,100 | 25 km |
| 1614 | NIIGATA PREFECTURE | Earthquake | — | — | 59 km |
| 1448 | SADO, JAPAN | Earthquake | — | — | 56 km |
| 887 | NIIGATA | Earthquake | — | 2,000 | 57 km |
| 863 | NW. HONSHU ISLAND | Eruption + Earthquake | — | — | 23 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Myokosan (16 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Myokosan | Stratovolcano | 2,454 m (8,051 ft) | -750 | 16 km |
| Niigata-Yakeyama | Lava dome | 2,400 m (7,874 ft) | 1998 | 19 km |
| Shiga | Shield(s) | 2,041 m (6,696 ft) | Unknown | 44 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 50 km |
| Asamayama | Complex | 2,568 m (8,425 ft) | 2019 | 71 km |
| Midagahara | Stratovolcano | 2,621 m (8,599 ft) | 1839 | 74 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 81 km |
| Washiba-Kumonotaira | Shield(s) | 2,924 m (9,593 ft) | Unknown | 87 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 94 km |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 99 km |
| Yokodake | Stratovolcano(es) | 2,480 m (8,136 ft) | 1200 | 102 km |
| Yakedake | Stratovolcano(es) | 2,455 m (8,054 ft) | 1995 | 103 km |
| Nikko-Shiranesan | Shield | 2,578 m (8,458 ft) | 1952 | 105 km |
| Nantaisan | Stratovolcano | 2,486 m (8,156 ft) | -9540 | 116 km |
| Omanago Group | Lava dome(s) | 2,341 m (7,680 ft) | -3050 | 116 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 34°F (1°C) | 12.6 in | Coldest |
| February | 34°F (1°C) | 8.1 in | |
| March | 39°F (4°C) | 5.8 in | |
| April | 51°F (11°C) | 3.7 in | Driest |
| May | 60°F (16°C) | 3.8 in | |
| June | 68°F (20°C) | 5.7 in | |
| July | 75°F (24°C) | 7.7 in | |
| August | 78°F (26°C) | 6.1 in | Warmest |
| September | 70°F (21°C) | 8.1 in | |
| October | 59°F (15°C) | 7.2 in | |
| November | 49°F (9°C) | 9.5 in | |
| December | 40°F (4°C) | 12.6 in | Wettest |
Arai has a seasonal temperature swing of 44°F / from 34°F in January to 78°F in August. Total annual precipitation is 90.8 inches, with December being the wettest month (12.6") and April the driest (3.7").