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Iwaizumi, Japan
Full City Profile
4.1
/5.0
A
Great
8,987
Population
12/sq mi density
364 ft
Elevation
111 meters
46°F
Avg Temperature
8°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.1 / 5.0
$26,100 median income, 2.5% unemployment
A+
Affordability
5.0 / 5.0
$64,000 home value, $320/mo rent
Iwaizumi experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 25°F in January while summers reach 65°F in July. The area gets 242 sunny days per year. Annual precipitation totals 51.7 inches. The area receives 9.8 inches of snow annually.
Temperature
25°F Jan (-4°C)
65°F Jul (19°C)
| Annual Average | 45.8°F |
| 15% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 65°F (19°C) |
| Sunny Days | 242 days/yr |
Geography
| Elevation | 364 ft (111 m) |
| Area | 756.4 sq mi (1,959.0 km²) |
| Population Density | 12/sq mi |
| Coordinates | 39.8500°N, 141.8000°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Tsunami History
20 tsunamis recorded within 500 km. Highest wave on record: 5.0 m (16 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1763 | SANRIKU | Earthquake | 5.0 m | — | 107 km |
| 2008 | ARATOZAWA, JAPAN | Eruption + Earthquake | 2.5 m | 23 | 121 km |
| 1846 | SANRIKU | Earthquake | 2.0 m | — | 71 km |
| 1960 | SANRIKU | Earthquake | 1.0 m | — | 137 km |
| 1968 | SANRIKU | Earthquake | 1.0 m | — | 122 km |
| 1989 | JAPAN | Earthquake | 0.9 m | — | 82 km |
| 2025 | OFF NORTHEAST COAST HONSHU | Earthquake | 0.7 m | — | 132 km |
| 1901 | OFF NORTHEAST COAST HONSHU | Earthquake | 0.6 m | — | 94 km |
| 1912 | SANRIKU | Earthquake | 0.5 m | — | 74 km |
| 1928 | SANRIKU | Earthquake | 0.5 m | — | 121 km |
| 1945 | SANRIKU | Earthquake | 0.4 m | 2 | 120 km |
| 1992 | HONSHU ISLAND | Earthquake | 0.3 m | — | 140 km |
| 1960 | SANRIKU | Earthquake | 0.3 m | — | 78 km |
| 2015 | HONSHU | Earthquake | 0.3 m | — | 92 km |
| 1901 | OFF NORTHEAST COAST HONSHU | Earthquake | 0.3 m | 18 | 94 km |
| 2025 | OFF NORTHEAST COAST HONSHU | Earthquake | 0.2 m | — | 143 km |
| 2025 | SANRIKU | Earthquake | 0.2 m | — | 147 km |
| 1989 | N. HONSHU ISLAND | Earthquake | 0.1 m | — | 135 km |
| 1898 | HONSHU ISLAND | Earthquake | 0.1 m | — | 140 km |
| 1901 | OFF NORTHEAST COAST HONSHU | Earthquake | 0.0 m | — | 94 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
12 volcanoes within 200 km. Closest: Iwatesan (68 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Iwatesan | Complex | 2,038 m (6,686 ft) | 1919 | 68 km |
| Hachimantai | Stratovolcano | 1,613 m (5,292 ft) | -5350 | 82 km |
| Akita-Komagatake | Stratovolcano(es) | 1,637 m (5,371 ft) | 1971 | 86 km |
| Akita-Yakeyama | Stratovolcano | 1,366 m (4,482 ft) | 1997 | 90 km |
| Towada | Caldera | 1,011 m (3,317 ft) | 915 | 107 km |
| Hakkodasan | Stratovolcano(es) | 1,585 m (5,200 ft) | 1550 | 119 km |
| Kurikomayama | Stratovolcano | 1,627 m (5,338 ft) | 1950 | 132 km |
| Naruko | Caldera | 470 m (1,542 ft) | 837 | 155 km |
| Iwakisan | Stratovolcano | 1,625 m (5,331 ft) | 1863 | 156 km |
| Osorezan | Stratovolcano | 878 m (2,881 ft) | 1787 | 169 km |
| Chokaisan | Stratovolcano(es) | 2,236 m (7,336 ft) | 1974 | 172 km |
| Megata | Maar(s) | 291 m (955 ft) | -2050 | 177 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 2.0 in | Coldest, Driest |
| February | 26°F (-4°C) | 2.3 in | |
| March | 31°F (-0°C) | 3.2 in | |
| April | 43°F (6°C) | 3.9 in | |
| May | 52°F (11°C) | 4.1 in | |
| June | 58°F (14°C) | 5.2 in | |
| July | 65°F (19°C) | 6.3 in | |
| August | 68°F (20°C) | 6.9 in | Warmest |
| September | 61°F (16°C) | 7.4 in | Wettest |
| October | 50°F (10°C) | 5.0 in | |
| November | 40°F (4°C) | 3.1 in | |
| December | 30°F (-1°C) | 2.3 in |
Iwaizumi has a seasonal temperature swing of 44°F / from 25°F in January to 68°F in August. Total annual precipitation is 51.7 inches, with September being the wettest month (7.4") and January the driest (2.0").