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Itoigawa, Japan
Full City Profile
4.1
/5.0
A
Great
40,765
Population
141/sq mi density
49 ft
Elevation
15 meters
54°F
Avg Temperature
12°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
Itoigawa experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 33°F in January while summers reach 74°F in July. The area gets 196 sunny days per year. Annual precipitation totals 77.4 inches. The area receives 15.4 inches of snow annually.
Temperature
33°F Jan (1°C)
74°F Jul (23°C)
| Annual Average | 53.8°F |
| 0% below US avg | |
| January Average | 33°F (1°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 196 days/yr |
Geography
| Elevation | 49 ft (15 m) |
| Area | 288.1 sq mi (746.2 km²) |
| Population Density | 141/sq mi |
| Coordinates | 37.0333°N, 137.8500°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Tsunami History
15 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 | 72 km |
| 1993 | HONSHU ISLAND | Earthquake | 0.5 m | — | 86 km |
| 1987 | HONSHU ISLAND | Earthquake | 0.2 m | — | 46 km |
| 2023 | NOTO PENINSULA, JAPAN | Earthquake | 0.1 m | 1 | 74 km |
| 2007 | HONSHU: W COAST | Earthquake | 0.1 m | 1 | 117 km |
| 2007 | HONSHU: W COAST | Earthquake | — | 15 | 82 km |
| 1892 | SW. HONSHU ISLAND | Earthquake | — | 1 | 93 km |
| 1802 | NW. HONSHU ISLAND | Earthquake | — | 19 | 84 km |
| 1799 | SW. HONSHU ISLAND | Earthquake | — | — | 121 km |
| 1762 | NW. HONSHU ISLAND | Earthquake | — | — | 140 km |
| 1751 | NW. HONSHU ISLAND | Eruption + Earthquake | — | 2,100 | 29 km |
| 1614 | NIIGATA PREFECTURE | Earthquake | — | — | 54 km |
| 1448 | SADO, JAPAN | Earthquake | — | — | 60 km |
| 887 | NIIGATA | Earthquake | — | 2,000 | 56 km |
| 863 | NW. HONSHU ISLAND | Eruption + Earthquake | — | — | 15 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Niigata-Yakeyama (21 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Niigata-Yakeyama | Lava dome | 2,400 m (7,874 ft) | 1998 | 21 km |
| Myokosan | Stratovolcano | 2,454 m (8,051 ft) | -750 | 28 km |
| Midagahara | Stratovolcano | 2,621 m (8,599 ft) | 1839 | 56 km |
| Shiga | Shield(s) | 2,041 m (6,696 ft) | Unknown | 71 km |
| Washiba-Kumonotaira | Shield(s) | 2,924 m (9,593 ft) | Unknown | 73 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 76 km |
| Asamayama | Complex | 2,568 m (8,425 ft) | 2019 | 92 km |
| Yakedake | Stratovolcano(es) | 2,455 m (8,054 ft) | 1995 | 93 km |
| Norikuradake | Stratovolcano(es) | 3,026 m (9,928 ft) | -50 | 106 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 109 km |
| Yokodake | Stratovolcano(es) | 2,480 m (8,136 ft) | 1200 | 113 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 128 km |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 131 km |
| Ontakesan | Complex | 3,067 m (10,062 ft) | 2014 | 131 km |
| Hakusan | Stratovolcano | 2,702 m (8,865 ft) | 1659 | 137 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (1°C) | 9.2 in | Wettest |
| February | 33°F (1°C) | 6.1 in | Coldest |
| March | 38°F (4°C) | 5.0 in | |
| April | 50°F (10°C) | 3.7 in | Driest |
| May | 59°F (15°C) | 3.9 in | |
| June | 67°F (19°C) | 5.9 in | |
| July | 74°F (23°C) | 7.3 in | |
| August | 77°F (25°C) | 5.5 in | Warmest |
| September | 69°F (21°C) | 7.9 in | |
| October | 58°F (14°C) | 6.2 in | |
| November | 48°F (9°C) | 7.5 in | |
| December | 38°F (4°C) | 9.1 in |
Itoigawa has a seasonal temperature swing of 44°F / from 33°F in February to 77°F in August. Total annual precipitation is 77.4 inches, with January being the wettest month (9.2") and April the driest (3.7").